An automatic welding device suitable for door frame machining

Abstract

The present application relates to door frame welding technical field, specifically to a kind of automatic welding device suitable for door frame processing, comprising: machine table;Robot fixedly installed on the machine table;Welding head installed on the robot;The fixed mechanism that door frame is fixed;The fixed mechanism includes: support table;Fixedly installed on the support table stop plate, cylinder one;Clamping plate hingedly installed in the movable end of the cylinder one;Supporting assembly for the inner support of door frame.In the present application, by the setting of support table, stop plate, supporting assembly, on the one hand, the vertical inner wall of the frame is extruded, so that the adjacent frame can be extruded and fixed, so that the butt joint surface of adjacent frame is accurately butt jointed, the accuracy of the entire door frame welding is guaranteed, on the other hand, the welding position of adjacent frame is in the same plane, the welding quality of door frame is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door frame welding, in particular to an automatic welding device suitable for door frame processing. BACKGROUND

[0002] The anti-theft door frame is composed of an upper frame, a bottom frame and two side frames, and the cross section of the upper frame, the bottom frame and the side frames is " " shaped for easy installation with the wall. Since each frame is formed by stamping and bending metal plates, the resilience of the metal material itself causes the bending frames to rebound, which affects the welding quality of the anti-theft door frame.

[0003] A door frame welding machine is disclosed in Chinese patent CN202222628488.5, which comprises a base, a workbench installed on the base, a plurality of slide rails arranged on the top of the workbench, a clamping mechanism, a first moving device, a welding device, a second moving device and a telescopic device. The slide rails form a rectangle, the clamping mechanism is installed on the slide rails, the first moving device is installed on the base, the welding device is installed on the first moving device, the second moving device is installed on the welding device, and the telescopic device is installed on the second moving device. The welding machine is installed on the telescopic end of the telescopic device. The door frame welding machine can weld the four sides of the door frame without moving the position of the door frame, which facilitates the adjustment of the position and angle of the door frame assembly.

[0004] The door frame welding machine in the above-mentioned patent has the problem that the welding position of the door frame is not located in the same plane when the clamping structure in the welding machine clamps and welds the door frame, which affects the welding quality.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. SUMMARY

[0006] The present application aims to provide an automatic welding device suitable for door frame processing, which can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of the present application, the following technical solutions are adopted:

[0008] An automatic welding device suitable for door frame processing, comprising: a machine table; a robot fixedly installed on the machine table; a welding head installed on the robot; a fixing mechanism for fixing the door frame;

[0009] The fixing mechanism comprises: a support table; a limiting plate fixedly installed on the support table, a cylinder one; a clamping plate hingedly installed on the movable end of the cylinder one; a support assembly for internally supporting the door frame; the clamping plate and the support table are hingedly arranged;

[0010] The support assembly comprises: a cylinder two fixedly installed on the support table; an extrusion block fixedly installed on the movable end of the cylinder two; an installation cavity opened on the extrusion block; a cylinder three fixedly installed in the installation cavity; a linkage block fixedly installed on the movable end of the cylinder three; a support rod penetratingly installed on the extrusion block; a support plate fixedly installed on one end of the support rod; a movable block fixedly installed on the other end of the support rod; a reset spring for driving the movable block to reset.

[0011] Further, one side of the linkage block and the movable block close to each other is arranged to be inclined.

[0012] Further, the fixing mechanism further comprises: an adjusting assembly for adjusting the position of the support assembly;

[0013] The adjusting assembly comprises: a mounting frame rotatably installed on the machine table; a bidirectional screw one rotatably installed on the mounting frame; a motor one for driving the bidirectional screw one to rotate; a sliding frame threadedly connected with the bidirectional screw one; a fixed frame fixedly installed on the mounting frame; a bidirectional screw two rotatably installed on the fixed frame; a motor two for driving the bidirectional screw two to rotate; a movable frame threadedly connected with the bidirectional screw two.

[0014] Further, the sliding frame is slidingly installed on the mounting frame; the movable frame is slidingly installed on the sliding frame; the support table is slidingly connected with the sliding frame and the movable frame.

[0015] Further, the fixing mechanism further comprises: a rotating assembly for driving the mounting frame to rotate;

[0016] The rotating assembly comprises: a driven synchronous wheel coaxially connected with the mounting frame; a driving synchronous wheel rotatably installed in the machine table; a synchronous belt drivingly installed on the driving synchronous wheel and the driven synchronous wheel; a motor three for driving the driving synchronous wheel.

[0017] Further, it further comprises: a processing mechanism for processing welding fume during welding;

[0018] The processing mechanism comprises: an annular pipe fixedly sleeved on the welding head; an air inlet head in communication with the annular pipe; a purification box and an air pump fixedly installed on the machine table; an air inlet pipe in communication with the purification box and the annular pipe; a gas guide pipe in communication with the air pump and the purification box.

[0019] Further, the processing mechanism further comprises a positioning assembly for positioning the rotated mounting frame;

[0020] The positioning assembly comprises a rotating disc coaxially connected with the mounting frame, a positioning slot formed on the rotating disc, a gas collecting pipe fixedly installed on the machine table, a movable rod penetratingly installed on the gas collecting pipe, a positioning block fixedly installed on one end of the movable rod, a piston fixedly installed on the other end of the movable rod, a connecting spring for driving the piston to reset, and a circular hole formed on the gas collecting pipe.

[0021] Further, the positioning slot is provided with four, and the four positioning slots are evenly distributed in a ring shape along the circumference of the rotating disc, and the positioning block is matched with the positioning slot.

[0022] Further, the processing mechanism further comprises a maintenance assembly for maintaining the welded door frame;

[0023] The maintenance assembly comprises a liquid storage tank fixedly installed on the machine table, a liquid guide pipe in communication with the liquid storage tank, a spray head in communication with the liquid guide pipe, and an air outlet pipe in communication between the gas collecting pipe and the liquid storage tank.

[0024] Further, it further comprises a fourth air cylinder fixedly installed on the sliding frame and a top plate fixedly installed on the movable end of the fourth air cylinder.

[0025] Compared with the prior art, the present application has the following beneficial effects:

[0026] 1、The automatic welding device suitable for door frame machining is provided with a supporting table, a limiting plate and a supporting assembly, which can extrude the vertical inner wall of the frame, thereby extruding and fixing the adjacent frames, so that the butt joint surfaces of the adjacent frames are accurately butt jointed, the accuracy of the entire door frame welding is ensured, the welding positions of the adjacent frames are in the same plane, and the welding quality of the door frame is improved.

[0027] 2、The automatic welding device suitable for door frame machining is provided with a first air cylinder and a clamping plate, which can extrude and fix the top of the frame, so that the top side wall of the frame is closely attached to the supporting plate, the position of the door frame welding is further ensured to be in the same plane, and the welding quality of the door frame is further improved.

[0028] 3、The automatic welding device suitable for door frame machining provided by the present application, through the setting of the processing mechanism, can realize the purification treatment of welding smoke in the welding process, avoid the direct emission of welding smoke to pollute the air, realize the fixation of the mounting frame, improve the stability in the door frame welding process, avoid the rotation of the mounting frame due to external force or vibration during welding, cause the offset of the welding position of the door frame, affect the welding quality, realize the delivery of the maintenance liquid to the spray head through the liquid guide pipe, and spray the maintenance liquid on the completed welding butt joint through the spray head, effectively prevent the contact between the metal and the moisture and oxygen in the external environment, improve the welding quality, reduce the possibility of rust caused by oxidation of the metal, can long-term maintain the gloss and integrity of the weld, and prolong the service life of the metal structure. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application, and are used to explain the present application, and do not constitute a limitation on the present application.

[0030] Figure 1 It is a perspective view of the automatic welding device suitable for door frame machining of the present application;

[0031] Figure 2 It is another angle perspective view of the automatic welding device suitable for door frame machining of the present application;

[0032] Figure 3 It is a perspective view of the automatic welding device suitable for door frame machining of the present application; Figure 2 It is an enlarged view of A in the above figure;

[0033] Figure 4 It is a maintenance assembly structure schematic view of the automatic welding device suitable for door frame machining of the present application;

[0034] Figure 5 It is a rotating assembly structure schematic view of the automatic welding device suitable for door frame machining of the present application;

[0035] Figure 6 It is an adjusting assembly structure schematic view of the automatic welding device suitable for door frame machining of the present application;

[0036] Figure 7 It is a perspective view of the rotating disc of the automatic welding device suitable for door frame machining of the present application;

[0037] Figure 8 It is a perspective view of the automatic welding device suitable for door frame machining of the present application; Figure 7 It is an enlarged view of B in the above figure;

[0038] Figure 9It is a support table stereoscopic schematic view of the automatic welding device suitable for door frame processing of the application;

[0039] Figure 10 It is a cross-sectional view of the extrusion block of the automatic welding device suitable for door frame processing of the application;

[0040] Figure 11 It is a top view of the frame of the automatic welding device suitable for door frame processing of the application.

[0041] In the figure:

[0042] 1, machine table; 2, robot; 3, welding head; 4, fixing mechanism; 41, support table; 42, limiting plate; 43, air cylinder one; 44, clamping plate; 45, support assembly; 451, air cylinder two; 452, extrusion block; 453, air cylinder three; 454, linkage block; 455, movable block; 456, support rod; 457, support plate; 458, return spring; 46, adjusting assembly; 461, mounting frame; 462, motor one; 463, bidirectional screw one; 464, sliding frame; 465, fixed frame; 466, motor two; 467, bidirectional screw two; 468, movable frame; 47, rotating assembly; 471, driving synchronous wheel; 472, driven synchronous wheel; 473, synchronous belt; 474, motor three; 5, processing mechanism; 51, annular pipe; 52, air inlet head; 53, air inlet pipe; 54, purification box; 55, air guide pipe; 56, air pump; 57, positioning assembly; 571, turntable; 572, positioning groove; 573, gas collecting pipe; 574, movable rod; 575, positioning block; 576, piston; 577, linkage spring; 578, round hole; 58, maintenance assembly; 581, liquid storage tank; 582, liquid guide pipe; 583, spray head; 584, air outlet pipe; 6, air cylinder four; 7, top plate; 8, frame; 9, butt joint surface. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the following will combine the technical scheme in the embodiments of the application to make clear and complete description, obviously, the described embodiments are part of the embodiments of the application, not all the embodiments.

[0044] In the description of the present application, it needs to be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application. When a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and the like used herein are only for illustrative purposes.

[0045] As shown in Figures 1 to 11 The present application is an automatic welding device suitable for door frame processing, comprising: a machine table 1; a robot 2 fixedly installed on the machine table 1; a welding head 3 installed on the robot 2; a fixing mechanism 4 for fixing the door frame.

[0046] The door frame in the present application is composed of four edge frames 8, and the cross sections of the four edge frames 8 are all "F" shaped. The end faces of each edge frame 8 are all butt joint faces 9, and the butt joint faces 9 are all inclined at 45 degrees. The door frame is fixed by the fixing mechanism 4, and then the robot 2 drives the welding head 3 to weld the door frame.

[0047] The fixing mechanism 4 comprises: a support table 41, which is provided with four; a limiting plate 42 and a cylinder one 43 fixedly installed on the support table 41; a clamping plate 44 hingedly installed on the movable end of the cylinder one 43; a support assembly 45 for internally supporting the door frame, which is provided with four groups and is located at the four corners of the door frame to be welded; the clamping plate 44 and the support table 41 are hingedly arranged; an adjusting assembly 46 for adjusting the position of the support assembly 45.

[0048] The adjusting assembly 46 comprises a mounting frame 461 rotatably mounted on the machine table 1, a bidirectional screw one 463 rotatably mounted on the mounting frame 461, a motor one 462 for driving the bidirectional screw one 463 to rotate, two sliding frames 464 in threaded connection with the bidirectional screw one 463, a fixed frame 465 fixedly mounted on the mounting frame 461, a bidirectional screw two 467 rotatably mounted on the fixed frame 465, a motor two 466 for driving the bidirectional screw two 467 to rotate, two movable frames 468 in threaded connection with the bidirectional screw two 467, the sliding frames 464 are slidably mounted on the mounting frame 461, the movable frames 468 are slidably mounted on the sliding frames 464, and the support tables 41 are slidably connected with the sliding frames 464 and the movable frames 468.

[0049] The motor one 462 is started to drive the bidirectional screw one 463 to rotate, so as to drive the two sliding frames 464 to approach each other, and the two sliding frames 464 drive the adjacent support tables 41 to approach each other along the axial direction of the bidirectional screw one 463.

[0050] The motor two 466 is started to drive the bidirectional screw two 467 to rotate, so as to drive the two movable frames 468 to approach each other, and the two movable frames 468 drive the adjacent support tables 41 to approach each other along the axial direction of the bidirectional screw two 467.

[0051] In the present application, the distance between the four support tables 41 can be adjusted according to the length and width of the door frame through the adjusting assembly 46, so as to be suitable for different specifications of door frames.

[0052] It is to be supplemented that the motor one 462 and the motor two 466 are preferably double-shaft motors.

[0053] When the adjustment of the support tables 41 is completed, the frame 8 of the door frame is placed on the top of the support tables 41, and the outer wall of the frame 8 abuts against the adjacent limiting plates 42, and the abutting surfaces 9 of the adjacent frames 8 are abutted, at this time, the support assembly 45 is started to support the abutting position (i.e. the welding position) of the frame 8.

[0054] The support assembly 45 comprises: a cylinder two 451 fixedly installed on the support table 41; an extrusion block 452 fixedly installed at the movable end of the cylinder two 451; an installation cavity opened on the extrusion block 452; a cylinder three 453 fixedly installed in the installation cavity; a linkage block 454 fixedly installed at the movable end of the cylinder three 453; a support rod 456 penetratingly installed on the extrusion block 452; a support plate 457 fixedly installed at one end of the support rod 456, and each support plate 457 is fixedly connected with at least two support rods 456; a movable block 455 fixedly installed at the other end of the support rod 456; a reset spring 458 for driving the movable block 455 to reset, one end of the reset spring 458 is fixedly connected with the movable block 455, and the other end of the reset spring 458 is fixedly connected with the inner wall of the installation cavity; and the linkage block 454 and the movable block 455 are both provided in an inclined manner at the side close to each other.

[0055] When the frame 8 is placed, the cylinder two 451 is started to drive the adjacent extrusion block 452 to move, the extrusion block 452 moves into the inner cavity of the frame 8 with a section of “” shape, the extrusion side of the extrusion block 452 can extrude the vertical inner wall of the frame 8, and the adjacent frame 8 can be extruded and fixed in cooperation with the limiting plate 42.

[0056] Since the extrusion side of the extrusion block 452 is provided in an inclined manner and the extrusion side is two, the included angle of the two extrusion sides is 90 degrees, so that the adjacent frames 8 are perpendicular to each other, and the abutting surfaces 9 of the adjacent frames 8 are tightly abutted, thereby ensuring the accuracy of the welding of the entire door frame.

[0057] When the extrusion block 452 cooperates with the limiting plate 42 to fix the frame 8, the cylinder three 453 is started to drive the linkage block 454 to move, the linkage block 454 moves the adjacent movable block 455, the movable block 455 drives the adjacent support rod 456 to move, the support rod 456 drives the adjacent support plate 457 to move, and the reset spring 458 is compressed, the adjacent support plates 457 are away from each other, so that the horizontal inner wall of the frame 8 can be supported, and one support plate 457 can support the abutting portions of two different frames 8 at the same time, so that the welding positions of the adjacent frames 8 are in the same plane, and the welding quality of the door frame is improved.

[0058] When the extrusion and support of the frame 8 are completed, the cylinder one 43 is started to drive the clamping plate 44 to move, so that the clamping plate 44 rotates at the hinged portion with the support table 41, so that the clamping side of the clamping plate 44 extrudes and fixes the top of the frame 8, so that the top side wall of the frame 8 is tightly attached to the support plate 457, further ensuring that the welding positions of the door frame are in the same plane, and further improving the welding quality of the door frame.

[0059] In the present application, through the setting of the support table 41, the limiting plate 42, the support assembly 45, the air cylinder one 43 and the clamping plate 44, on the one hand, the vertical inner wall of the frame 8 is extruded, so that the adjacent frames 8 can be extruded and fixed, and since the included angle of the two extrusion sides of the extrusion block 452 is 90 degrees, the adjacent frames 8 are perpendicular to each other, and the abutting surfaces 9 of the adjacent frames 8 are tightly abutted, thereby ensuring the accuracy of the entire door frame welding; on the other hand, the welding positions of the adjacent frames 8 are in the same plane, thereby improving the welding quality of the door frame; on the other hand, the top of the frame 8 is extruded and fixed, so that the top side wall of the frame 8 is tightly attached to the support plate 457, thereby further ensuring that the welding position of the door frame is in the same plane, and further improving the welding quality of the door frame.

[0060] The fixing mechanism 4 further comprises a rotating assembly 47 for rotating the mounting frame 461; the rotating assembly 47 comprises a driven synchronous wheel 472 coaxially connected with the mounting frame 461; a driving synchronous wheel 471 rotatably mounted in the machine table 1; a synchronous belt 473 drivingly mounted on the driving synchronous wheel 471 and the driven synchronous wheel 472; and a motor three 474 driving the driving synchronous wheel 471, which is fixedly mounted in the machine table 1.

[0061] When the four frames 8 of the door frame are all fixed, the motor three 474 is started to drive the driving synchronous wheel 471 to rotate, the driving synchronous wheel 471 drives the driven synchronous wheel 472 to rotate through the synchronous belt 473, the driven synchronous wheel 472 drives the mounting frame 461 to rotate, thereby driving the door frame to rotate, and the door frame rotates 90 degrees each time, so that the welding position of the door frame moves to the lower side of the welding head 3 in turn, and the robot 2 drives the welding head 3 to weld the door frame.

[0062] The processing mechanism 5 for processing welding fume during welding; the processing mechanism 5 comprises an annular pipe 51 fixedly sleeved on the welding head 3; an air inlet head 52 in communication with the annular pipe 51; a purification tank 54 and an air pump 56 fixedly mounted on the machine table 1; an air inlet pipe 53 in communication with the purification tank 54 and the annular pipe 51; and an air guide pipe 55 in communication with the air pump 56 and the purification tank 54.

[0063] Before starting the welding head 3 to weld the door frame, the air pump 56 is started to inhale, so as to realize inhaling before welding, thereby improving the collection effect of the welding fume; the welding fume generated during welding enters the purification tank 54 through the air inlet head 52, the annular pipe 51 and the air inlet pipe 53 in turn, and is discharged through the air guide pipe 55 after purification in the purification tank 54, thereby realizing purification treatment of the welding fume and avoiding direct discharge of the welding fume to pollute the air.

[0064] It is supplemented that the purification tank 54 is provided with a filter screen for filtering the welding fume.

[0065] The processing mechanism 5 also includes: a positioning component 57 for positioning the rotated mounting frame 461; the positioning component 57 includes: a turntable 571 coaxially connected to the mounting frame 461; a positioning groove 572 opened on the turntable 571; an air collecting pipe 573 fixedly installed on the machine base 1, the air collecting pipe 573 being connected to the air outlet of the air pump 56 through a connecting pipe; a movable rod 574 installed through the air collecting pipe 573; a positioning block 575 fixedly installed at one end of the movable rod 574; a piston 576 fixedly installed at the other end of the movable rod 574; a linkage spring 577 for driving the piston 576 to reset; and a circular hole 578 opened on the air collecting pipe 573; four positioning grooves 572 are provided, and the four positioning grooves 572 are evenly distributed in a ring around the circumference of the turntable 571, and the positioning block 575 matches the positioning groove 572.

[0066] When the air pump 56 is started, it delivers the purified gas to the gas collection pipe 573 through the connecting pipe. Due to the small diameter of the round hole 578, the amount of gas discharged from the round hole 578 is less than the amount of gas inlet. Therefore, most of the gas will remain in the gas collection pipe 573. As the amount of gas in the gas collection pipe 573 increases, the air pressure in the gas collection pipe 573 also increases, which can push the piston 576 to slide in the gas collection pipe 573. The piston 576 drives the movable rod 574 to move and drives the linkage spring 577 to compress. The movable rod 574 drives the positioning block 575 to insert into the adjacent positioning groove 572, thereby fixing the turntable 571. Since the turntable 571 is coaxially connected with the mounting bracket 461, the mounting bracket 461 can be fixed, which improves the stability of the door frame welding process. This can prevent the mounting bracket 461 from rotating due to external force or vibration during welding, which would cause the welding position of the door frame to shift and affect the welding quality.

[0067] After welding is completed, the air pump 56 stops running and no longer supplies gas into the gas collection pipe 573. The gas in the gas collection pipe 573 is discharged through the round hole 578. When the air pressure inside and outside the gas collection pipe 573 is balanced, the piston 576 can be reset by the action of the linkage spring 577, which can then separate the positioning block 575 from the positioning groove 572 and release the fixation on the turntable 571. At this time, the rotating component 47 can be started to rotate the door frame 90 degrees, so that the next welding point of the door frame moves to below the welding head 3, and the above operation is repeated until the entire door frame is welded.

[0068] The processing mechanism 5 further comprises a maintenance assembly 58 for maintaining the door frame after welding; the maintenance assembly 58 comprises a liquid storage tank 581 fixedly installed on the machine table 1, the liquid storage tank 581 storing maintenance liquid; a liquid guide pipe 582 in communication with the liquid storage tank 581; a spray head 583 in communication with the liquid guide pipe 582; an air outlet pipe 584 in communication with the gas collecting pipe 573 and the liquid storage tank 581, and an electromagnetic valve installed on the air outlet pipe 584.

[0069] When the welding of one welding position of the door frame is completed, the rotating assembly 47 is started to rotate the door frame by 90 degrees, so that the next welding position of the door frame moves to the lower side of the welding head 3, and the welded butt joint moves to the lower side of the spray head 583.

[0070] At this time, the air pump 56 is started again to deliver the purified gas into the gas collecting pipe 573, and at this time, the electromagnetic valve is opened, a part of the gas is delivered into the liquid storage tank 581 through the air outlet pipe 584, on the one hand, the gas can stir the maintenance liquid to make the components of the maintenance liquid uniform, and on the other hand, the pressure in the liquid storage tank 581 can be increased, when the pressure in the liquid storage tank 581 reaches a certain value, the maintenance liquid can be delivered into the spray head 583 through the liquid guide pipe 582, and sprayed on the welded butt joint through the spray head 583, effectively preventing the metal from contacting with moisture and oxygen in the external environment, improving the welding quality, thereby reducing the possibility of rusting of the metal due to oxidation, and prolonging the service life of the metal structure.

[0071] It is supplemented here that the total amount of the gas discharged through the air outlet pipe 584 and the circular hole 578 is less than the gas inlet amount of the gas collecting pipe 573, so as not to affect the increase of the gas pressure in the gas collecting pipe 573.

[0072] In the present application, through the arrangement of the processing mechanism 5, on the one hand, the welding fume can be purified and treated, avoiding the direct discharge of the welding fume to pollute the air, on the other hand, the mounting frame 461 can be fixed, improving the stability during the welding of the door frame, thereby avoiding the rotation of the mounting frame 461 due to external force or vibration during welding, causing the welding position of the door frame to deviate, affecting the welding quality, and on the other hand, the maintenance liquid can be delivered into the spray head 583 through the liquid guide pipe 582, and sprayed on the welded butt joint through the spray head 583, effectively preventing the metal from contacting with moisture and oxygen in the external environment, improving the welding quality, thereby reducing the possibility of rusting of the metal due to oxidation, and prolonging the service life of the metal structure.

[0073] Further comprising a gas cylinder four 6 fixedly installed on the sliding frame 464; and a top plate 7 fixedly installed on the movable end of the gas cylinder four 6.

[0074] When the frame 8 is welded, the fourth cylinder 6 drives the top plate 7 to move upward, so that the top plate 7 abuts against the frame 8, and then the fourth cylinder 6 stops running, thereby supporting the frame 8 and further improving the stability of the frame 8 during welding.

[0075] When the frame is completely welded, the fixing mechanism 4 is released to fix the frame, and then the fourth cylinder 6 is started again to drive the top plate 7 to continue moving upward, so that the whole frame is lifted, thereby facilitating the discharging of the welded frame.

[0076] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0077] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. An automated welding device suitable for door frame fabrication, characterized by, Include: The machine table; The robot fixedly installed on the machine table; The welding head installed on the robot; The fixing mechanism for fixing the door frame; The fixing mechanism comprises: a support table, a limiting plate fixedly installed on the support table, a gas cylinder I, a clamping plate hingedly installed on the movable end of the gas cylinder I, a support assembly for internally supporting the door frame, and the clamping plate and the support table are hingedly arranged; The support assembly comprises: a gas cylinder II fixedly installed on the support table, an extrusion block fixedly installed on the movable end of the gas cylinder II, an installation cavity opened on the extrusion block, a gas cylinder III fixedly installed in the installation cavity, a linkage block fixedly installed on the movable end of the gas cylinder III, a support rod penetratingly installed on the extrusion block, a support plate fixedly installed on one end of the support rod, a movable block fixedly installed on the other end of the support rod, and a reset spring driving the movable block to reset; The side of the linkage block and the movable block close to each other is inclined; The fixing mechanism further comprises: an adjusting assembly for adjusting the position of the support assembly; The adjusting assembly comprises: a mounting bracket rotatably installed on the machine table, a bidirectional screw rod I rotatably installed on the mounting bracket, a motor I driving the bidirectional screw rod I to rotate, a sliding bracket in threaded connection with the bidirectional screw rod I, a fixed bracket fixedly installed on the mounting bracket, a bidirectional screw rod II rotatably installed on the fixed bracket, a motor II driving the bidirectional screw rod II to rotate, and a movable bracket in threaded connection with the bidirectional screw rod II; Further comprising: a treatment mechanism for treating welding smoke during welding; The treatment mechanism comprises: an annular pipe fixedly sleeved on the welding head, an air inlet head in communication with the annular pipe, a purification box fixedly installed on the machine table, and a gas pump; An air inlet pipe in communication with the purification tank and the annular pipe; The gas guide pipe in communication between the gas pump and the purification tank; The treatment mechanism further comprises: a positioning assembly for positioning the rotating mounting bracket; The positioning assembly comprises: a turntable coaxially connected with the mounting bracket, a positioning groove opened on the turntable, a gas collecting pipe fixedly installed on the machine table, a movable rod penetratingly installed on the gas collecting pipe, a positioning block fixedly installed on one end of the movable rod, a piston fixedly installed on the other end of the movable rod, a linkage spring driving the piston to reset, and a circular hole opened on the gas collecting pipe; The positioning groove is provided with four positioning grooves, and the four positioning grooves are evenly distributed in the circumferential direction of the turntable, and the positioning block and the positioning groove are matched.

2. An automated welding device for door frame fabrication as claimed in claim 1, wherein, The sliding bracket is slidingly installed on the mounting bracket; the movable bracket is slidingly installed on the sliding bracket; the support table is slidingly connected with the sliding bracket and the movable bracket.

3. An automated welding device for door frame fabrication as defined in claim 2, wherein, The fixing mechanism further comprises: a rotating assembly driving the mounting bracket to rotate; The rotating assembly comprises: a driven synchronous wheel coaxially connected with the mounting bracket, a driving synchronous wheel rotatably installed in the machine table, a synchronous belt drivingly installed on the driving synchronous wheel and the driven synchronous wheel, and a motor III driving the driving synchronous wheel.

4. The automated welding device for door frame fabrication of claim 1, wherein, The treatment mechanism further comprises: a maintenance assembly for maintaining the welded door frame; The maintenance assembly comprises a liquid storage tank fixedly installed on the machine table, a liquid guide pipe communicated with the liquid storage tank, a spray head communicated with the liquid guide pipe, and an air outlet pipe communicated between the air collecting pipe and the liquid storage tank.

5. An automated welding device for door frame fabrication as defined in claim 1, wherein, Further comprising: A gas cylinder four fixedly installed on the sliding frame, and a top plate fixedly installed on a movable end of the gas cylinder four.

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