Civil air defense door frame welding workbench

Abstract

The utility model relates to the technical field of civil air defense door welding, in particular to a civil air defense door frame welding workbench which comprises a welding platform and a positioning mechanism. The positioning mechanism comprises a transverse positioning assembly, a longitudinal fixing component and a longitudinal moving component. The transverse positioning assembly comprises a transverse fixed limiting column and a transverse limiting block, and a transverse limiting gap is formed between the transverse fixed limiting column and the transverse limiting block; the longitudinal fixing part comprises a longitudinal fixing limiting column and a longitudinal limiting block, and a longitudinal limiting gap is formed between the longitudinal fixing limiting column and the longitudinal limiting block; the longitudinal moving part comprises a longitudinal moving limiting column, a first sliding groove is formed in the top wall of the welding platform, and the longitudinal moving limiting column slides in the first sliding groove, so that the peripheral sides of all frames of the civil air defense door are conveniently limited and fixed; and meanwhile, a longitudinal moving part in the longitudinal positioning assembly slides in a first sliding groove, the position of one longitudinal frame of the civil air defense door is adjusted, and civil air defense doors with different widths can be conveniently limited and fixed.

Description

Technical Field

[0001] The present application relates to the technical field of civil air defense door welding, and in particular to a civil air defense door frame welding workbench. Background Art

[0002] Civil air defense doors are usually made of high-strength steel to ensure that they have sufficient strength and durability; the surface of the civil air defense door is welded with steel plates, a steel frame support is installed inside, and the interior is filled with concrete.

[0003] When welding the existing civil air defense door, first, the staff places the base plate on the workbench, then installs the door frame on the base plate, and then limits the outer periphery of the door frame by limiting blocks to fix the position of the base plate and the door frame, and then the staff welds the door frame and the base plate to fix the door frame and the base plate, and then installs the steel cage in the pouring cavity formed by the door frame and the base plate. After the steel cage is installed, concrete is poured into the pouring cavity, and after the concrete is completely solidified, the top plate is welded on the top of the door frame; wherein, during the processing of the civil air defense door frame, the transverse border of the civil air defense door frame and the longitudinal border of the civil air defense door frame are placed on the workbench in turn, and then the staff manually adjusts the position of the transverse border and the longitudinal border, and the transverse border and the longitudinal border are abutted end to end in turn to make the civil air defense door frame tightly spliced, and then the civil air defense door frame is fixed by positioning blocks, and finally the seams of the transverse border and the longitudinal border are manually welded to realize the processing of the civil air defense door frame.

[0004] During the processing of the civil air defense door frame, workers are required to manually measure and locate the horizontal and vertical frames, which affects the processing efficiency of the civil air defense door frame. Utility Model Content

[0005] In order to improve the processing efficiency of civil air defense doors, the present application provides a civil air defense door frame welding workbench.

[0006] The present application provides a civil air defense door frame welding workbench that adopts the following technical solutions:

[0007] A civil air defense door frame welding workbench, comprising a welding platform and a positioning mechanism arranged on the welding platform;

[0008] The positioning mechanism includes a transverse positioning component, a longitudinal fixing component and a longitudinal moving component;

[0009] The transverse positioning assembly includes a transverse fixed limiting column and a transverse limiting block, the transverse fixed limiting column and the transverse limiting block are both fixedly connected to the welding platform, and a transverse limiting gap for clamping the transverse frame of the civil air defense door is formed between the transverse fixed limiting column and the transverse limiting block;

[0010] The longitudinal fixing component and the longitudinal moving component are arranged on opposite sides of the civil air defense door frame;

[0011] The longitudinal fixing component includes a longitudinal fixing limit column and a longitudinal limit block, the longitudinal fixing limit column and the longitudinal limit block are both fixedly connected to the welding platform, and a longitudinal limit gap for clamping the longitudinal frame of the civil air defense door is formed between the longitudinal fixing limit column and the longitudinal limit block;

[0012] The longitudinal moving component includes a longitudinal moving limit column, and a first sliding groove is opened on the top wall of the welding platform. The first sliding groove is arranged along the length direction of the transverse frame of the civil defense door. The longitudinal moving limit column slides along the first sliding groove, and the longitudinal moving limit column abuts against the longitudinal frame of the civil defense door.

[0013] By adopting the above technical scheme, when positioning and fixing the door frame, the two transverse frames of the civil air defense doors are placed in the transverse limit gap between the transverse fixed limit column and the transverse limit block, and one of the longitudinal frames of the civil air defense doors is placed in the longitudinal limit gap between the longitudinal fixed limit column and the longitudinal limit block, and the transverse frame is abutted against the end of the longitudinal frame. Then, the other longitudinal frame of the civil air defense door is placed on the welding platform, and the longitudinal movable limit column is adjusted so that the longitudinal movable limit column slides in the first sliding groove. At the same time, the longitudinal movable limit column abuts against the longitudinal frame of the civil air defense door to ensure that the two ends of the longitudinal frame are tightly abutted against the transverse frame. Finally, the longitudinal movable limit column is fixedly connected to the welding platform to realize the peripheral limit fixation of the civil air defense door frame. The designed civil air defense door frame welding workbench limits and fixes the peripheral side of the civil air defense door frame through transverse positioning components, longitudinal fixed components and longitudinal movable components, which improves the convenience of positioning and fixing the civil air defense door frame, thereby facilitating the improvement of the processing efficiency of the civil air defense door.

[0014] In a specific possible implementation scheme, two groups of the lateral positioning components are provided, and the two groups of the lateral positioning components are provided on opposite sides of the civil air defense door frame, and the lateral positioning components and the longitudinal fixing components are provided on adjacent sides of the civil air defense door frame;

[0015] The two groups of transverse fixed limiting columns are fixedly arranged on the sides of the two transverse frames of the civil air defense doors away from each other, and the transverse fixed limiting columns are in contact with the outer side walls of the transverse frames;

[0016] The two groups of transverse limiting blocks are fixedly arranged on the side where the two transverse frames of the civil air defense doors are close to each other, and the transverse fixed limiting columns are in contact with the inner side walls of the transverse frames.

[0017] By adopting the above technical scheme, the set transverse fixed limit column limits the outer wall of the transverse frame of the civil air defense door, and the transverse limit block limits the inner wall of the transverse frame of the civil air defense door, thereby ensuring that the transverse frame of the civil air defense door is pressed tightly against the two side walls, making it easier to fix the transverse frame of the civil air defense door, and then facilitate the welding of the transverse frame of the civil air defense door.

[0018] In a specific feasible implementation scheme, the longitudinal fixed limiting column abuts against one of the outer side walls of the longitudinal frame; the longitudinal limiting block abuts against the inner side wall of the longitudinal frame of the civil air defense door.

[0019] By adopting the above technical scheme, the longitudinal fixed limit column is set to limit the outer wall of the longitudinal frame of the civil air defense door, and the longitudinal limit block is set to limit the inner wall of the longitudinal frame of the civil air defense door, thereby ensuring that the longitudinal frame of the civil air defense door is pressed against the two side walls, thereby facilitating the fixing of the longitudinal frame of the civil air defense door, and then facilitating the welding of the longitudinal frame of the civil air defense door.

[0020] In a specific feasible implementation scheme, the longitudinal movable limit column includes a sliding portion, a limiting portion and a positioning nut, and the sliding portion, the limiting portion and the positioning nut are coaxially arranged; the limiting portion is connected to the sliding portion, and the limiting portion abuts against the longitudinal frame of the civil defense door; the sliding portion passes through the first sliding groove and is threadedly connected to the positioning nut; the positioning nut is located below the welding platform, and the positioning nut abuts against the lower wall of the welding platform.

[0021] By adopting the above technical scheme, the sliding part is pushed to slide in the first sliding groove, the sliding part drives the limiting part to move, and the limiting part pushes the longitudinal frame of the civil air defense door to move, so that the two ends of the longitudinal frame are tightly against the transverse frame, and then force is applied to the positioning nut to make the positioning nut and the sliding part screwed together until the positioning nut is tightly against the lower wall of the welding platform, thereby realizing the limited fixation of the longitudinal frame of the civil air defense door. At the same time, the limiting part pushes the two ends of the longitudinal frame of the civil air defense door to abut against the transverse frame, so that the four frames are tightly matched, thereby improving the docking accuracy of the civil air defense door frame, and then improving the welding quality of the civil air defense door frame; the set sliding part slides in the first sliding groove, which is convenient for abutment positioning according to civil air defense door frames of different widths, thereby improving the applicability of the positioning mechanism.

[0022] In a specific possible implementation scheme, it also includes a plurality of fixed lifting limit cylinders;

[0023] The fixed lifting limit cylinder includes a fixed cylinder body, a first corner limiter and a first height fixing bolt. The fixed cylinder body is installed on the top wall of the welding platform, and the fixed cylinder body is abutted against two ends of the longitudinal frame close to the longitudinal fixed limit column. The piston rod of the fixed cylinder body passes through the first corner limiter, and the piston rod of the fixed cylinder body is threadedly connected to the first corner limiter. The first height fixing bolt is arranged at the end of the first corner limiter, and the first height fixing bolt is threadedly connected to the end of the first corner limiter.

[0024] By adopting the above technical scheme, a fixed lifting limit cylinder is set up, and in the initial state, the piston rod of the fixed cylinder body is extended. After the longitudinal fixing component limits and fixes a longitudinal frame of the civil air defense door, the operator installs the first corner limit piece on the piston rod of the fixed cylinder body, and then installs the first height fixing bolt on the end of the first corner limit piece, and adjusts the fixed cylinder body to make the piston rod of the fixed cylinder body contract, driving the first corner limit piece to move downward until the bottom wall of the first corner limit piece abuts against the top of the connection position of the longitudinal frame and the transverse frame of the civil air defense door frame. At this time, the first height fixing bolt abuts against the top wall of the welding platform, thereby limiting the top wall of the corner of the civil air defense door frame; the designed multiple fixed lifting limit cylinders limit and fix the top of the corner of the civil air defense door frame, improve the positioning accuracy, and thus facilitate improving the welding accuracy of the civil air defense door frame.

[0025] In a specific possible implementation scheme, it also includes a movable lifting limit cylinder, a second sliding groove is opened on the top wall of the welding platform, and the second sliding groove is arranged along the length direction of the transverse frame of the civil air defense door, and the two movable lifting limit cylinders are in contact with the end of the longitudinal frame of the civil air defense door away from the longitudinal fixed limit column;

[0026] The movable lifting limit cylinder comprises a movable cylinder body, a second corner limiter and a second height-fixing bolt;

[0027] The movable cylinder body comprises a sliding end, a piston end and a limiting nut; the sliding end is fixedly connected to the piston end, the sliding end passes through the second sliding groove, and the sliding end slides along the second sliding groove, the limiting nut is located below the welding platform, and the limiting nut is threadedly connected to the sliding end;

[0028] The piston end of the mobile cylinder body is arranged through the second corner limiter, and the piston end of the mobile cylinder body is threadedly connected to the second corner limiter; a second height fixing bolt is arranged at the end of the second corner limiter, and the second height fixing bolt is threadedly connected to the end of the second corner limiter.

[0029] By adopting the above technical solution, a movable lifting limit cylinder is set, and in the initial state, the sliding end is set in the second sliding groove, and the movable cylinder body is away from the longitudinal frame of the civil air defense door, and the piston end of the movable cylinder body is in an extended state. After the longitudinal moving component limits and fixes the other longitudinal frame of the civil air defense door, the operator pushes the movable cylinder body to make the sliding end slide in the second sliding groove until it is close to the longitudinal frame of the civil air defense door, and then installs the limit nut on the sliding end, so that the limit nut is tightly fitted with the bottom wall of the welding platform, so that the position of the movable cylinder body on the welding platform is fixed; then the first corner limit nut is set. The second height-fixing bolt is installed on the piston rod of the fixed cylinder body, and then the second edge and corner limiting piece is installed on the end of the second edge and corner limiting piece. The movable cylinder body is adjusted to make the piston end of the movable cylinder body contract, driving the second edge and corner limiting piece to move downward until the bottom wall of the second edge and corner limiting piece abuts against the top wall of the connecting position of the longitudinal frame and the transverse frame of the civil air defense door frame. At this time, the second height-fixing bolt abuts against the top wall of the welding platform, realizing the limitation of the top wall of the edge and corner of the civil air defense door frame; the multiple movable lifting and limiting cylinders designed are used to limit and fix the top of the edge and corner of the civil air defense door frame, thereby improving the positioning accuracy, and thus facilitating the improvement of the welding accuracy of the civil air defense door frame. The stability of the docking of the frames of the civil air defense door is improved.

[0030] In a specific possible implementation scheme, it also includes a bracket, which is arranged on the bottom wall of the welding platform, and a roller is installed at the bottom of the bracket.

[0031] By adopting the above technical solution, the provided bracket and rollers are convenient for carrying the welding platform, thereby facilitating the movement of the welding platform.

[0032] In a specific possible implementation manner, it further includes a slide rail, which is arranged below the bracket, the roller is engaged in the slide rail, and the roller rolls along the slide rail.

[0033] By adopting the above technical solution, the slide rails and rollers are arranged to facilitate the movement of the welding platform along the slide rails for the next process operation.

[0034] In a specific possible implementation manner, it further includes a welding robot, and two of the welding robots are arranged on opposite sides of the slide rail.

[0035] By adopting the above technical solution, the welding robots arranged on both sides of the slide rail facilitate welding of the joints of the civil air defense door frame, thereby reducing manpower loss during the processing of the civil air defense door frame and improving the production efficiency of the civil air defense door frame.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. The transverse positioning assembly and the longitudinal positioning assembly are arranged to abut against the inner and outer side walls of the civil air defense door frame, thereby facilitating the limiting and fixing of the sides of each frame of the civil air defense door; at the same time, the longitudinal moving component in the longitudinal positioning assembly adjusts the position of one of the longitudinal frames of the civil air defense door by sliding in the first sliding groove, thereby facilitating the limiting and fixing of civil air defense doors of different widths.

[0038] 2. The fixed lifting limit cylinder and the movable lifting limit cylinder are respectively abutted against the top walls of the corners of the civil defense door frame through the first corner limit piece and the second corner limit piece, so as to fix the position of the top wall of the civil defense frame and thereby improve the stability of the connection between the civil defense frames.

[0039] 3. The pulley and slide rail set at the bottom of the bracket cooperate to realize the transfer of the civil air defense door frame to the next work section after the welding of each frame is completed, so as to improve the processing efficiency of the civil air defense door frame.

[0040] 4. The welding robot is set up to facilitate the welding of the joints of the frames of the civil air defense doors, reducing manual operations and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The present invention is a schematic diagram of the overall structure of a civil air defense door frame welding workbench.

[0042] Figure 2 It is a partial schematic diagram of a civil air defense door frame welding workbench, which is intended to illustrate the welding platform and positioning mechanism.

[0043] Figure 3 It is a partial cross-sectional view of a civil air defense door frame welding workbench, intended to illustrate the movable lifting limit cylinder and the longitudinal movable limit column.

[0044] Figure 4 yes Figure 1 The enlarged view of part A is intended to illustrate the fixed lifting limit cylinder

[0045] Description of the drawings: 1. welding platform; 2. positioning mechanism; 21. transverse positioning assembly; 211. transverse fixed limiting column; 212. transverse limiting block; 213. transverse limiting gap; 22. longitudinal fixed component; 221. longitudinal fixed limiting column; 222. longitudinal limiting block; 223. longitudinal limiting gap; 23. longitudinal moving component; 231. longitudinal moving limiting column; 2311. sliding part; 2312. limiting part; 2313. positioning screw Mother; 232, first sliding groove; 3, fixed lifting limit cylinder; 31, fixed cylinder body; 32, first corner limit piece; 33, first height fixing bolt; 4, mobile lifting limit cylinder; 41, second sliding groove; 42, mobile cylinder body; 421, sliding end; 422, piston end; 423, limit nut; 43, second corner limit piece; 44, second height fixing bolt; 5, bracket; 51, roller; 6, slide rail; 7, welding robot. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-4 This application is described in further detail.

[0047] An embodiment of the present application discloses a civil air defense door frame welding workbench.

[0048] Reference Figure 1 and Figure 2 A civil air defense door frame welding workbench comprises a welding platform 1, a positioning mechanism 2, a fixed lifting limit cylinder 3, a movable lifting limit cylinder 4 and a bracket 5; the positioning mechanism 2 is arranged on the top wall of the welding platform 1, and the positioning mechanism 2 abuts against the inner and outer side walls of the civil air defense door frame, the fixed lifting limit cylinder 3 and the movable lifting limit cylinder 4 are installed on the welding platform 1 near the corners of the civil air defense door frame, and the bracket 5 is fixedly connected to the bottom wall of the welding platform 1.

[0049] Reference Figure 1 and Figure 2The positioning mechanism 2 includes a transverse positioning component 21, a longitudinal fixing component 22 and a longitudinal moving component 23; a group of transverse positioning components 21 includes a plurality of transverse fixed limit columns 211 and a plurality of transverse limit blocks 212. The transverse fixed limit columns 211 and the transverse limit blocks 212 can be two, three, or four, as long as the position of the two ends of the transverse frame of the civil air defense door can be fixed. In this embodiment, two transverse fixed limit columns 211 and two transverse limit blocks 212 are provided; the transverse fixed limit columns 211 and the transverse limit blocks 212 are fixedly connected to the welding platform 1, and a transverse limit gap 213 is formed between the plurality of transverse fixed limit columns 211 and the plurality of transverse limit blocks 212. The two groups of transverse positioning components 21 are arranged in parallel, and the transverse frames of the two civil air defense doors are both engaged in the transverse limit gap 213; the transverse fixed limit column 211 abuts against the outer wall of the transverse frame of the civil air defense door, and the transverse limit block 212 abuts against the inner wall of the transverse frame of the civil air defense door.

[0050] The longitudinal fixing component 22 is fixedly connected to the top wall of the welding platform 1 and abuts against one of the side walls of the longitudinal frame of the civil air defense door; the longitudinal fixing component 22 includes a plurality of longitudinal fixed limit columns 221 and a plurality of longitudinal limit blocks 222. The longitudinal fixed limit columns 221 and the longitudinal limit blocks 222 can be two, three, or four, as long as the position of the two ends of the longitudinal frame of the civil air defense door can be fixed. In this embodiment, two longitudinal fixed limit columns 221 and two longitudinal limit blocks 222 are provided; the longitudinal fixed limit columns 221 and the longitudinal limit blocks 222 are both fixedly connected to the welding platform 1, and a longitudinal limit gap 223 is formed between the plurality of longitudinal fixed limit columns 221 and the plurality of longitudinal limit blocks 222, and a longitudinal frame of the civil air defense door is engaged in the longitudinal limit gap 223; the longitudinal fixed limit column 221 abuts against the outer wall of the longitudinal frame of the civil air defense door, and the longitudinal limit block 222 abuts against the inner wall of the longitudinal frame of the civil air defense door.

[0051] Reference Figure 2 and Figure 3 A first sliding groove 232 is provided on the top wall of the welding platform 1, and the first sliding groove 232 is arranged along the length direction of the horizontal frame of the civil air defense door. The longitudinal moving component 23 can slide in the first sliding groove 232; the longitudinal moving component 23 includes a longitudinal moving limiting column 231, and the longitudinal moving limiting column 231 includes a sliding portion 2311, a limiting portion 2312 and a positioning nut 2313, and the sliding portion 2311 is coaxially arranged with the limiting portion 2312; the sliding portion 2311 passes through the first sliding groove 232, and one end of the sliding portion 2311 extending out from the bottom of the welding platform 1 is threadedly connected with the positioning nut 2313, and the positioning nut 2313 abuts against the lower wall of the welding platform 1; the limiting portion 2312 abuts against the outer wall of the longitudinal frame of a civil air defense door.

[0052] Reference Figure 2 and Figure 4 , two fixed lifting limit cylinders 3 are fixedly set on the top wall of the welding platform 1, and abut against the two corners of the air defense door frames close to the longitudinal fixing part 22; the fixed lifting limit cylinder 3 includes a fixed cylinder body 31, a first corner limiter 32 and a first height fixing bolt 33. The fixed cylinder body 31 is installed on the top wall of the welding platform 1, and the fixed cylinder body 31 is arranged close to the outer wall of the corner of the air defense door frame. A mounting hole is opened in the middle section of the first corner limiter 32, and the piston rod of the fixed cylinder body 31 passes through the mounting hole. Two nuts are arranged on the piston rod of the fixed cylinder body 31, and the two nuts abut against the first corner limiter 32, so that the first corner limiter 32 is fixedly connected to the piston rod of the fixed cylinder body 31; a first height fixing bolt 33 is arranged at the end of the first corner limiter 32, and the first height fixing bolt 33 is threadedly connected to the end of the first corner limiter 32, and the first corner limiter 32 abuts against the top wall of the corner of the air defense door frame.

[0053] Reference Figure 2 and Figure 3 A second sliding groove 41 is opened on the top wall of the welding platform 1, and the second sliding groove 41 is arranged along the length direction of the transverse frame of the civil air defense door, and the two movable lifting limit cylinders 4 slide along the second sliding groove 41.

[0054] The movable lifting limit cylinder 4 includes a movable cylinder body 42, a second corner limiter 43 and a second height fixing bolt 44; the movable cylinder body 42 is in contact with the corners of the two air defense door frames close to the longitudinal moving part 23, and the movable cylinder body 42 includes a sliding end 421, a piston end 422 and a limit nut 423; the sliding end 421 is fixedly connected to the piston end 422, and one end of the sliding end 421 passes through the second sliding groove 41 and is threadedly connected to the limit nut 423, and the limit nut 423 is located below the welding platform 1, and the limit nut 423 It is threadedly connected to the sliding end 421; a mounting hole is provided in the middle section of the second corner limiter 43, and the piston end 422 of the movable cylinder body 42 passes through the mounting hole. The piston end 422 is provided with two nuts, and the two nuts abut against the second corner limiter 43, so that the second corner limiter 43 is fixedly connected to the piston end 422, and a second height fixing bolt 44 is provided at the end of the second corner limiter 43, and the second height fixing bolt 44 is threadedly connected to the end of the second corner limiter 43, and the second corner limiter 43 abuts against the top wall of the corner of the civil defense door frame.

[0055] Reference Figure 1 The bracket 5 is arranged on the bottom wall of the welding platform 1, and a roller 51 is installed at the bottom of the bracket 5. A slide rail 6 is arranged below the bracket 5. The two slide rails 6 are parallel to the horizontal frame of the civil air defense door. The roller 51 is engaged in the slide rail 6 and rolls along the slide rail 6; welding robots 7 are arranged on the opposite sides of the two slide rails 6, and the two welding robots 7 weld the seams of the civil air defense door frame.

[0056] The implementation principle of the civil air defense door frame welding workbench of the present application is as follows: when welding and fixing the frames of the civil air defense door, first place the two transverse frames of the civil air defense door in the transverse limiting gap 213, and place one of the longitudinal frames of the civil air defense door in the longitudinal limiting gap 223, so that the transverse frames abut against the ends of the longitudinal frames, and then place the other longitudinal frame of the civil air defense door on the welding platform 1, adjust the longitudinal movable limiting column 231, so that the longitudinal movable limiting column 231 slides in the first sliding groove 232, and at the same time, the longitudinal movable limiting column 231 abuts against the longitudinal frame of the civil air defense door to ensure that the two ends of the longitudinal frame are tightly abutted against the transverse frame, and finally tighten the positioning nut 2313, the positioning nut 2313 is threadedly connected to the sliding part 2311 of the longitudinal movable limiting column 231, and the longitudinal movable sliding column is fixedly connected to the welding platform 1 to realize the peripheral limiting fixation of the civil air defense door frame; then, adjust the two fixed lifting limit cylinders 3 , make the first corner limit piece 32 abut against the top walls of the two corners of the civil air defense door frame, and at the same time adjust the positions of the two movable lifting limit cylinders 4 on the second sliding groove 41 to ensure that the movable lifting limit cylinder 4 abuts against the other two corner side walls of the civil air defense door, tighten the limit nut 423, the limit nut 423 is threadedly connected to the sliding end 421 of the movable cylinder body 42, and the movable cylinder body 42 is fixedly connected to the welding platform 1, and the piston end 422 is adjusted so that the piston end 422 drives the second corner limit piece 43 to descend until the second corner limit piece 43 abuts against the top walls of the other two corners of the civil air defense door, and the top wall of the civil air defense door is limited and fixed; then the welding robots 7 on both sides of the welding platform 1 weld the joints of the civil air defense door frame. After welding is completed, the roller 51 under the bracket 5 slides on the slide rail 6, driving the civil air defense door welding platform 1 to move along the slide rail 6, and transporting the welding platform 1 to the next work section.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A civil air defense door frame welding workbench, characterized in that: It comprises a welding platform (1) and a positioning mechanism (2) arranged on the welding platform (1); The positioning mechanism (2) comprises a transverse positioning component (21), a longitudinal fixing component (22) and a longitudinal moving component (23); The transverse positioning assembly (21) comprises a transverse fixed limiting column (211) and a transverse limiting block (212), the transverse fixed limiting column (211) and the transverse limiting block (212) are both fixedly connected to the welding platform (1), and a transverse limiting gap (213) for clamping the transverse frame of the civil air defense door is formed between the transverse fixed limiting column (211) and the transverse limiting block (212); The longitudinal fixing component (22) and the longitudinal moving component (23) are arranged on opposite sides of the civil air defense door frame; The longitudinal fixing component (22) comprises a longitudinal fixing limit column (221) and a longitudinal limit block (222), the longitudinal fixing limit column (221) and the longitudinal limit block (222) are both fixedly connected to the welding platform (1), and a longitudinal limit gap (223) for clamping the longitudinal frame of the civil air defense door is formed between the longitudinal fixing limit column (221) and the longitudinal limit block (222); The longitudinal moving component (23) includes a longitudinal moving limit column (231), and a first sliding groove (232) is opened on the top wall of the welding platform (1), and the first sliding groove (232) is arranged along the length direction of the transverse frame of the civil air defense door. The longitudinal moving limit column (231) slides along the first sliding groove (232), and the longitudinal moving limit column (231) abuts against the longitudinal frame of the civil air defense door.

2. The civil air defense door frame welding workbench according to claim 1, characterized in that: The transverse positioning components (21) are provided in two groups, and the two groups of the transverse positioning components (21) are arranged on opposite sides of the civil air defense door frame, and the transverse positioning components (21) and the longitudinal fixing components (22) are arranged on adjacent sides of the civil air defense door frame; The two groups of transverse fixed limiting columns (211) are fixedly arranged on the sides of the transverse frames of the two air defense doors that are away from each other, and the transverse fixed limiting columns (211) are in contact with the outer side wall of the transverse frame; The two groups of transverse limiting blocks (212) are fixedly arranged on the sides of the transverse frames of the two air defense doors close to each other, and the transverse fixed limiting columns (211) are in contact with the inner side walls of the transverse frames.

3. The civil air defense door frame welding workbench according to claim 1, characterized in that: The longitudinal fixed limiting column (221) abuts against one of the outer side walls of the longitudinal frame; and the longitudinal limiting block (222) abuts against the inner side wall of the longitudinal frame of the civil air defense door.

4. The civil air defense door frame welding workbench according to claim 1, characterized in that: The longitudinal movable limiting column (231) comprises a sliding portion (2311), a limiting portion (2312) and a positioning nut (2313); the sliding portion (2311), the limiting portion (2312) and the positioning nut (2313) are coaxially arranged; the limiting portion (2312) is connected to the sliding portion (2311), and the limiting portion (2312) abuts against the longitudinal frame of the civil air defense door; the sliding portion (2311) passes through the first sliding groove (232) and is threadedly connected to the positioning nut (2313); the positioning nut (2313) is located below the welding platform (1), and the positioning nut (2313) abuts against the lower wall of the welding platform (1).

5. The civil air defense door frame welding workbench according to claim 1, characterized in that: It also includes a plurality of fixed lifting limit cylinders (3); The fixed lifting limit cylinder (3) comprises a fixed cylinder body (31), a first corner limit piece (32) and a first height fixing bolt (33); the fixed cylinder body (31) is mounted on the top wall of the welding platform (1), and the fixed cylinder body (31) abuts against two ends of the longitudinal frame close to the longitudinal fixed limit column (221); the piston rod of the fixed cylinder body (31) passes through the first corner limit piece (32), and the piston rod of the fixed cylinder body (31) is threadedly connected to the first corner limit piece (32); the first height fixing bolt (33) is arranged at the end of the first corner limit piece (32), and the first height fixing bolt (33) is threadedly connected to the end of the first corner limit piece (32).

6. The civil air defense door frame welding workbench according to claim 1, characterized in that: It also includes a movable lifting limit cylinder (4), a second sliding groove (41) is provided on the top wall of the welding platform (1), and the second sliding groove (41) is arranged along the length direction of the transverse frame of the civil air defense door, and the two movable lifting limit cylinders (4) are in contact with the end of the longitudinal frame of the civil air defense door away from the longitudinal fixed limit column (221); The movable lifting limit cylinder (4) comprises a movable cylinder body (42), a second corner limiter (43) and a second height-fixing bolt (44); The movable cylinder body (42) comprises a sliding end (421), a piston end (422) and a limiting nut (423); the sliding end (421) is fixedly connected to the piston end (422), the sliding end (421) passes through the second sliding groove (41), and the sliding end (421) slides along the second sliding groove (41), the limiting nut (423) is located below the welding platform (1), and the limiting nut (423) is threadedly connected to the sliding end (421); The piston end (422) of the movable cylinder body (42) is arranged through the second corner stopper (43), and the piston end (422) of the movable cylinder body (42) is threadedly connected to the second corner stopper (43); a second height-fixing bolt (44) is arranged at the end of the second corner stopper (43), and the second height-fixing bolt (44) is threadedly connected to the end of the second corner stopper (43).

7. The civil air defense door frame welding workbench according to claim 1, characterized in that: It also comprises a bracket (5), the bracket (5) being arranged on the bottom wall of the welding platform (1), and a roller (51) being installed at the bottom of the bracket (5).

8. The civil air defense door frame welding workbench according to claim 7, characterized in that: It also includes a slide rail (6), wherein the slide rail (6) is arranged below the bracket (5), the roller (51) is engaged in the slide rail (6), and the roller (51) rolls along the slide rail (6).

9. The civil air defense door frame welding workbench according to claim 8, characterized in that: It also comprises a welding robot (7), wherein two welding robots (7) are arranged on opposite sides of the slide rail (6).

Images