A welding device and its usage method for the production of anti-deformation door frames

Abstract

The present invention relates to the field of door frame welding, and specifically to a welding device and a usage method for producing anti-deformation door frames, including a workbench. A reduction motor is fixedly connected to the inner wall of the workbench, and a driving rod is fixedly connected to the main shaft of the reduction motor. A clamping mechanism is arranged at the upper end of the workbench, and a transmission mechanism is arranged inside the workbench. For this kind of welding device for producing anti-deformation door frames, through the settings of the locking parts, transmission lead screws, and energy storage wheels on the bearing platform, during the operation of the device, the four metal rods placed can be automatically arranged and fixed to quickly form the shape of a door frame, and the workpiece can be locked, so that during welding, the workpiece is not likely to perform other actions, improving the welding effect. And through the settings of the annular frame and the annular plate, when the workpiece is locked, the arc-shaped plate can be quickly switched to rotate in the arc-shaped frame to perform 360-degree welding on the connection part of the workpiece.

Description

Technical Field

[0001] The present invention relates to the field of door frame welding, and in particular to a welding device and a using method for producing a deformation-proof door frame. Background Technique

[0002] A door frame, generally referring to a door pocket, is mainly used for fixing a door leaf, protecting a wall corner and for decoration, etc. When manufacturing and processing a door frame, generally two groups of metal parts are connected end to end and welded at the seams through a welding device to form a quadrilateral door frame. When welding a door frame, the fixation of the door frame is very important to avoid skewing.

[0003] It is found that the following problems have not been well solved: 1. When welding a door frame, the door frame is formed by splicing and welding loose parts. During the splicing process, even a little inclination deviation can easily cause the subsequent loose parts to not be welded on. Therefore, the fixation of the door frame is very important. Manual operation is prone to fatigue, which affects the welding effect; 2. Secondly, during the welding process, workers need to weld back and forth at the four corners, and some welding points are located inside the door frame. The staff needs to move a lot, which is very easy to get tired and affects the welding efficiency during continuous door frame welding operations. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device and a using method for producing a deformation-proof door frame to solve the problems of inconvenient fixation and low welding efficiency mentioned in the above background technique. To achieve the above purpose, the present invention provides the following technical solution: A welding device for producing a deformation-proof door frame, including a workbench, a reduction motor is fixedly connected in the inner wall of the workbench, and a driving rod is fixedly connected to the main shaft of the reduction motor. A clamping mechanism is arranged at the upper end of the workbench, and a transmission mechanism is arranged inside the workbench;

[0005] The clamping mechanism includes a bearing plate, a driving plate is rotatably connected to the bottom end of the bearing plate. The top end of the driving plate has a gear surface formed by machining. Two groups of limiting wheels are symmetrically arranged on both sides of the driving plate. A transmission belt is connected between the driving plate and the two driving wheels. Both the front and rear sides of the transmission belt are connected with transmission wheels, and transmission rods are fixedly connected to the upper ends of the two transmission wheels. The outer wall of the transmission rod is rotatably connected to the inner wall of the bearing plate. The top end of the transmission rod is rotatably connected to a right side rod. The front end of the right side rod has a gear structure formed by machining, and a left side rod is meshed with the side wall of the right side rod. The structures between the right side rod and the left side rod are the same, and the ends of the right side rod and the left side rod are both hinged with a U-shaped locking sleeve.

[0006] Preferably, the clamping mechanism further includes a transmission lead screw. The end of the transmission lead screw is connected to the bearing plate through a metal plate. Two sets of the transmission lead screws are symmetrically arranged about the axis of the bearing plate, and the thread directions of the two transmission lead screws are opposite. C-shaped sleeves are threadedly connected to both of the two transmission lead screws. The front ends of the two transmission lead screws are both provided with a limit sleeve. A plurality of tooth blocks are inserted into the inner wall of the limit sleeve, and the plurality of tooth blocks are all connected to the inner wall of the limit sleeve through compression springs;

[0007] A power storage wheel is horizontally arranged between the two limit sleeves. The two sides of the power storage wheel are respectively inserted and arranged with the front ends of the two transmission lead screws. A plurality of annularly arrayed tooth grooves are formed on the outer wall of the power storage wheel. The power storage wheel is meshed with the gear surface of the upper driving plate. A limit rod is fixedly connected to the outer wall of the power storage wheel;

[0008] Mounting sleeves are fixedly connected to the outer walls of the two limit sleeves. Chutes are formed on the outer walls of the two mounting sleeves. Connecting rods are rotatably connected to the inner walls of the chutes. The connecting rods on the two mounting sleeves are arranged in a staggered and crossed manner. The centers of the two connecting rods are connected through a rotating shaft, and the end of the rotating shaft is connected to the bearing plate. Pressing plates are horizontally arranged at both ends of the connecting rod. The bottom ends of the two pressing plates are slidably connected to the bearing plate, and a telescopic spring rod is fixedly connected between the two pressing plates.

[0009] Preferably, the ends of the two transmission lead screws are both arranged in a spring telescopic structure, and a scroll spring is used to connect the outer walls of the two transmission lead screws and the inner walls of the two limit sleeves.

[0010] Preferably, the locking sleeve includes an inner cavity, which is formed in the inner wall of the locking sleeve. A limit bin is fixedly connected to the bottom wall of the inner cavity. A wedge plate is slidably connected to the inner wall of the limit bin. An inclined edge is formed on the side wall of the wedge plate, and a locking plate is attached to the side wall of the wedge plate. A pressing rod is attached to the front end of the wedge plate, and the outer wall of the pressing rod is inserted into the inner wall of the locking sleeve.

[0011] Preferably, the transmission mechanism includes a control sleeve. The top end of the control sleeve is rotatably connected to the bottom end of the upper driving plate. The bottom end of the control sleeve is rotatably connected to a lower driving plate. Meshing grooves are formed at the bottom end of the upper driving plate and the top end of the lower driving plate. A shaft sleeve is slidably connected to the inner wall of the control sleeve. A double-sided gear is rotatably connected to the inner wall of the shaft sleeve. The double-sided gear is fixedly connected to the driving rod. Extension plates are fixedly connected to the front and rear ends of the shaft sleeve. A trigger plate is fixedly connected to the top end of the extension plate. The top end of the trigger plate is triangular, and the top end of the trigger plate penetrates through the bearing plate;

[0012] A plurality of planetary gears arranged in a ring array are meshed on the outer wall of the lower driving plate, and an outer ring sleeve is sleeved on the outer wall of the lower driving plate, and the inner wall of the outer ring sleeve is meshed with the planetary gears, and the planetary gears are located between the outer ring sleeve and the lower driving plate, and the outer wall of the outer ring sleeve is rotatably connected to the inner wall of the workbench.

[0013] Preferably, the outer walls of the two trigger plates are vertically slidably connected to the inner wall of the workbench, and the two trigger plates and the locking sleeves are horizontally arranged.

[0014] Preferably, the transmission mechanism further comprises an arc frame, the outer wall of the arc frame is fixedly connected to the inner wall of the workbench and the load-bearing plate, the inner wall of the arc frame is slidably connected with an arc plate, the inner wall of the arc plate is fixedly connected with a welding rod, and the welding rod is a spring telescopic rod structure, and the front end of the welding rod is fixedly connected with a contact head, and the top end of the contact head has an arc surface formed by mechanical processing;

[0015] A limiting plate is fixedly connected to one side of the arc frame, and a plurality of toggle wheels are arranged in a circular array on the outer wall of the limiting plate, and the plurality of toggle wheels are connected by a transmission belt, and a fitting wheel is fixedly connected to the side walls of the plurality of toggle wheels, and the outer wall of the fitting wheel is fitted with the outer wall of the arc plate;

[0016] A helical gear structure is formed by machining on the side wall of the toggle wheel at the bottom of the limit plate, and the outer wall of the toggle wheel is meshed with the top end of the outer ring sleeve.

[0017] A method for using a welding device for producing an anti-deformation door frame comprises the following steps:

[0018] S1. With the start-up of the device, the staff puts the vertical rod and horizontal rod used for the door frame in the lock sleeve and the middle area of the load-bearing plate respectively, and then drives the reduction motor, which drives the double-sided gear through the driving rod, and the double-sided gear meshes with the upper driving plate, thereby driving the upper driving plate to rotate. The upper driving plate continues to rotate, driving the transmission belt on its side to transmit, and the transmission belt outputs power to the transmission wheels on both sides. The transmission wheels synchronously drive the transmission rod to rotate. Since the left rod and the right rod are meshed, when the right rod rotates inward, it can synchronously drive the left rod to move synchronously;

[0019] S2. As the right and left rods on both sides of the load-bearing plate are retracted inward, the vertical rods can be driven to close to the middle area through the locking sleeves and continuously contact the cross rods. When the vertical rods are in contact with the cross rods, the vertical rods stop moving. At this time, since the right and left rods are arranged with a spring telescopic structure, the left and right rods begin to contract and continuously push the locking sleeves to close to the middle area of the vertical rods.

[0020] S3, then the two locking sleeves close and contact the pressure plate, at this time the pressure rod in the locking sleeve is pressed forward, pushing the wedge plate forward and squeezing the locking plate, the locking plate gradually rises, and the vertical rod is completely locked;

[0021] The two transmission screw rods are simultaneously contracted and connected to each other, so that the transmission screw rods lose connection with the power storage wheel, and the transmission screw rods are quickly reset through the coil spring, thereby driving the C-shaped sleeves on both sides to move forward relatively, pushing the cross bar frame column on the bearing plate forward continuously, until the cross bar is pushed to the maximum distance, and the cross bar and the vertical rod are in a connected state;

[0022] S4. At this time, due to the continuous forward movement of the two locking sleeves, the two locking sleeves continue to squeeze the pressure plate and shrink, and then the two locking sleeves squeeze the trigger plate, and the trigger plate pushes the extension plate downward, driving the double-sided gear to engage with the lower drive plate, and the lower drive plate drives the outer ring sleeve through the planetary gear to start to rotate slowly;

[0023] S5. At the same time, the outer ring sleeve drives the toggle wheel meshing with it, and several toggle wheels are connected by friction belts, so that several toggle wheels rotate synchronously, and the fitting wheels on the side walls of several toggle wheels push the arc plate to perform circular motion in the arc frame, thereby pushing the welding rod to weld the welding point, and the setting of the contact head can control the length of the welding rod when it contacts the material, so as to facilitate precise welding. Finally, when the arc plate completes a circle of rotation, the reduction motor can be controlled to reverse, reset the arc plate, and at the same time push the power storage wheel on the upper drive plate to reverse, push the upper drive plate to reverse and reset all components, so as to facilitate the staff to perform subsequent material collection operations.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the present invention, by setting the locking parts, transmission screw and power storage wheel on the supporting platform, the four placed metal rods can be automatically arranged and fixed during the operation of the equipment, quickly forming a door frame shape, and the workpiece can be locked, so that the workpiece is not prone to other movements during welding, thereby increasing the welding effect.

[0026] In the present invention, through the settings of the upper drive plate, the lower drive plate and the bidirectional gear, the switching of the power direction can be carried out, reducing the waste of additional power of the device, facilitating the simplification and volume reduction of the device, and facilitating the convenient operation of the staff.

[0027] In the present invention, through the settings of the annular frame and the annular plate, when the workpiece is locked, the arc-shaped plate can be quickly switched to rotate in the arc-shaped frame to perform 360-degree welding on the connection part of the workpiece, reducing the movement of the staff at the four corners of the workpiece, reducing the labor intensity of the staff, and increasing the production efficiency during continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic three-dimensional assembly structure of the present invention Figure 1 ;

[0029] Figure 2 is a schematic three-dimensional assembly structure of the present invention Figure 2 ;

[0030] Figure 3 is a schematic diagram of the connection structure between the limit sleeve and the energy storage wheel in the present invention;

[0031] Figure 4 For the present invention Figure 3 is an enlarged schematic diagram of the structure at position A in the present invention;

[0032] Figure 5 is a schematic three-dimensional side structure diagram of the limit sleeve and the energy storage wheel in the present invention;

[0033] Figure 6 is a schematic diagram of the connection structure of the transmission belt in the present invention;

[0034] Figure 7 is a schematic cross-sectional structure diagram of the lock sleeve in the present invention;

[0035] Figure 8 is a schematic cross-sectional structure diagram of the transmission structure in the present invention;

[0036] Figure 9 For the present invention Figure 8 is an enlarged schematic diagram of the structure at position B in the present invention;

[0037] Figure 10 is a schematic diagram of the rotation structure of the welding rod in the present invention.

[0038] In the figure: 1, workbench; 2, driving rod; 3, clamping mechanism; 31, bearing plate; 32, upper driving plate; 33, limiting wheel; 34, transmission belt; 35, transmission wheel; 36, transmission rod; 37, right rod; 38, left rod; 39, locking sleeve; 391, inner cavity; 392, limiting bin; 393, wedge plate; 394, bevel; 395, locking plate; 396, pressure rod; 310, transmission screw; 311, limiting sleeve; 312, tooth block; 313, storage force wheel; 314, limit rod; 315, installation sleeve; 316, slide groove; 317, connecting rod; 318, pressure plate; 4, transmission mechanism; 41, control sleeve; 42, lower drive plate; 43, shaft sleeve; 44, double-sided gear; 45, extension plate; 46, trigger plate; 47, planetary gear; 48, outer ring sleeve; 49, arc frame; 410, arc plate; 411, welding rod; 412, contact head; 413, limit plate; 414, toggle wheel; 415, fitting wheel. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figures 1 to 10 The present invention provides a technical solution: a welding device for anti-deformation door frame production, comprising a workbench 1, a reduction motor is fixedly connected to the inner wall of the workbench 1, and a driving rod 2 is fixedly connected to the main shaft of the reduction motor, a clamping mechanism 3 is arranged at the upper end of the workbench 1, and a transmission mechanism 4 is arranged inside the workbench 1;

[0041] The clamping mechanism 3 includes a carrying plate 31, the bottom end of the carrying plate 31 is rotatably connected to an upper driving plate 32, the top of the upper driving plate 32 has a gear surface formed by mechanical processing, and two groups of limiting wheels 33 are symmetrically arranged on both sides of the upper driving plate 32, a transmission belt 34 is connected between the upper driving plate 32 and the two groups of driving wheels, the front and rear sides of the transmission belt 34 are connected to transmission wheels 35, and the upper ends of the two transmission wheels 35 are fixedly connected to a transmission rod 36, the outer wall of the transmission rod 36 is rotatably connected to the inner wall of the carrying plate 31, and the top of the transmission rod 36 is rotatably connected to a right side rod 37, the front end of the right side rod 37 has a gear structure formed by mechanical processing, and the side wall of the right side rod 37 is meshed with a left side rod 38, the right side rod 37 and the left side rod 38 have the same structure, and the ends of the right side rod 37 and the left side rod 38 are hinged with a locking sleeve 39 of a "匚" structure.

[0042] In this embodiment, Figure 1 , Figure 2 ,Figure 3 , Figure 4 and Figure 5 As shown in Figure 3 , Figure 4 and Figure 5 , the clamping mechanism 3 further includes a transmission lead screw 310. The end of the transmission lead screw 310 is connected to the bearing plate 31 through a metal plate. Two sets of transmission lead screws 310 are symmetrically arranged about the axis of the bearing plate 31, and the thread directions of the two transmission lead screws 310 are opposite. C-shaped sleeves are threadedly connected to both of the two transmission lead screws 310. The front ends of the two transmission lead screws 310 are both provided with through-limiting sleeves 311. A plurality of tooth blocks 312 are inserted into the inner wall of the limiting sleeve 311, and a plurality of tooth blocks 312 are connected to the inner wall of the limiting sleeve 311 through compression springs;

[0043] A power storage wheel 313 is horizontally arranged between the two limiting sleeves 311. The two sides of the power storage wheel 313 are respectively inserted and arranged with the front ends of the two transmission lead screws 310. A plurality of annularly arranged tooth grooves are formed on the outer wall of the power storage wheel 313. The power storage wheel 313 is meshed with the gear surface of the upper driving plate 32. A limiting rod 314 is fixedly connected to the outer wall of the power storage wheel 313;

[0044] Mounting sleeves 315 are fixedly connected to the outer walls of the two limiting sleeves 311. Chute grooves 316 are formed on the outer walls of the two mounting sleeves 315. Connecting rods 317 are rotatably connected to the inner walls of the chute grooves 316. The connecting rods 317 on the two mounting sleeves 315 are arranged in a staggered and crossed manner. The centers of the two connecting rods 317 are connected through a rotating shaft, and the end of the rotating shaft is connected to the bearing plate 31. Pressing plates 318 are horizontally arranged at both ends of the connecting rod 317. The bottom ends of the two pressing plates 318 are slidably connected to the bearing plate 31. A telescopic spring rod is fixedly connected between the two pressing plates 318, so that the restriction on the power storage wheel 313 can be released by changing the position of the limiting sleeve 311, thereby realizing the pushing of the workpiece in the central area.

[0045] In this embodiment, as Figure 3 and Figure 5 shown, the ends of the two transmission lead screws 310 are both arranged in a spring telescopic structure, and a coil spring is used to connect the outer walls of the two transmission lead screws 310 and the inner walls of the two limiting sleeves 311, which is convenient for changing the position of the limiting sleeve and facilitating the subsequent release of power.

[0046] In this embodiment, as Figure 2 and Figure 7As shown, the locking sleeve 39 includes an inner cavity 391 which is formed in the inner wall of the locking sleeve 39. A limiting bin 392 is fixedly connected to the bottom wall of the inner cavity 391. A wedge-shaped plate 393 is slidably connected in the inner wall of the limiting bin 392. An inclined edge 394 is formed on the side wall of the wedge-shaped plate 393. A locking plate 395 is disposed in a fitting manner on the side wall of the wedge-shaped plate 393. The front end of the wedge-shaped plate 393 is in fitting connection with a pressure rod 396. The outer wall of the pressure rod 396 is inserted into the inner wall of the locking sleeve 39, so that after the locking sleeve 39 releases the power restriction in the central area, the vertical workpiece can be quickly locked to avoid affecting the pushing of the central workpiece.

[0047] In this embodiment, as Figure 6 , Figure 8 and Figure 9 shown, the transmission mechanism 4 includes a control sleeve 41. The top end of the control sleeve 41 is rotatably connected to the bottom end of the upper driving plate 32. The bottom end of the control sleeve 41 is rotatably connected to a lower driving plate 42. Meshing grooves are formed at the bottom end of the upper driving plate 32 and the top end of the lower driving plate 42. A shaft sleeve 43 is slidably connected in the inner wall of the control sleeve 41. A double-sided gear 44 is rotatably connected in the inner wall of the shaft sleeve 43. The double-sided gear 44 is fixedly connected to the driving rod 2. Extension plates 45 are fixedly connected to both the front and rear ends of the shaft sleeve 43. A trigger plate 46 is fixedly connected to the top end of the extension plate 45. The top end of the trigger plate 46 is triangular and penetrates through the bearing plate 31.

[0048] A number of planet gears 47 arranged in an annular array are meshed on the outer wall of the lower driving plate 42. An outer ring sleeve 48 is sleeved on the outer wall of the lower driving plate 42. The inner wall of the outer ring sleeve 48 is meshed with the planet gears 47. The planet gears 47 are located between the outer ring sleeve 48 and the lower driving plate 42. The outer wall of the outer ring sleeve 48 is rotatably connected to the inner wall of the workbench 1. Through the switchable power, after the workpiece is fixed, the power can be triggered to control the welding rod 411 to perform welding for 360 degrees.

[0049] In this embodiment, as Figure 6 , Figure 8 and Figure 9 shown, the outer walls of the two trigger plates 46 are vertically slidably connected to the inner wall of the workbench 1. The two trigger plates 46 are horizontally arranged with the locking sleeve 39, so that when the locking sleeve 39 continuously moves inward, the power can be quickly released to control the power to continue to the lower driving plate 42.

[0050] In this embodiment, as Figure 6 , Figure 8 , Figure 9 and Figure 10As shown, the transmission mechanism 4 also includes an arc frame 49, the outer wall of the arc frame 49 is fixedly connected to the inner wall of the workbench 1 and the bearing plate 31, the inner wall of the arc frame 49 is slidably connected with an arc plate 410, the inner wall of the arc plate 410 is fixedly connected with a welding rod 411, and the welding rod 411 is a spring telescopic rod structure, and the front end of the welding rod 411 is fixedly connected with a contact head 412, and the top end of the contact head 412 has an arc surface formed by mechanical processing;

[0051] One side of the arc frame 49 is fixedly connected to a limit plate 413, and a plurality of toggle wheels 414 are arranged in a circular array on the outer wall of the limit plate 413, and the plurality of toggle wheels 414 are connected by a transmission belt 34, and a fitting wheel 415 is fixedly connected to the side walls of the plurality of toggle wheels 414, and the outer wall of the fitting wheel 415 is fitted to the outer wall of the arc plate 410;

[0052] The side wall of the bottommost toggle wheel 414 on the limiting plate 413 has a helical gear structure formed by machining, and the outer wall of the toggle wheel 414 is meshed with the top of the outer ring sleeve 48, which can control the welding rod 411 to rotate 360 degrees, facilitating rapid welding and reducing the labor intensity of the staff.

[0053] In this embodiment, Figures 1 to 10 As shown, a method for using a welding device for producing an anti-deformation door frame comprises the following steps:

[0054] S1. With the start of the device, the staff puts the vertical rod and the horizontal rod used for the door frame in the lock sleeve 39 and the middle area of the bearing plate 31 respectively, and then drives the reduction motor, which drives the double-sided gear 44 through the driving rod 2. The double-sided gear 44 meshes with the upper driving plate 32, thereby driving the upper driving plate 32 to rotate. The upper driving plate 32 continues to rotate, driving the transmission belt 34 on its side to transmit. The transmission belt 34 outputs power to the transmission wheels 35 on both sides, and the transmission wheels 35 synchronously drive the transmission rod 36 to rotate. Since the left rod 38 and the right rod 37 are meshed, when the right rod 37 rotates inward, it can synchronously drive the left rod 38 to move synchronously;

[0055] S2. As the right rod 37 and the left rod 38 on both sides of the bearing plate 31 are retracted inward, the locking sleeve 39 can drive the vertical rod to close to the middle area and continuously contact the cross rod. When the vertical rod and the cross rod are in contact, the vertical rod does not move. At this time, since the right rod 37 and the left rod 38 are set with a spring telescopic structure, the left rod 38 and the right rod 37 begin to contract and continuously push the locking sleeve 39 to close to the middle area of the vertical rod.

[0056] S3, the two locking sleeves 39 are then closed and contact the pressure plate 318, at which time the pressure rod 396 in the locking sleeve 39 is pressed forward, pushing the wedge plate 393 forward and squeezing the locking plate 395, and the locking plate 395 gradually rises to completely lock the vertical rod;

[0057] As the upper driving plate 32 continues to rotate, the upper driving plate 32 drives the power storage wheel 313 to rotate continuously. The power storage wheel 313 and the two transmission screws 310 are plugged into each other, so that the power storage wheel 313 can drive the two transmission screws 310 to rotate in the limiting sleeve 311 and continuously store power through the coil spring. When the power storage wheel 313 rotates, the limiting rod 314 on the power storage wheel 313 squeezes the tooth block 312 to contract, so that the power storage wheel 313 can currently only rotate in one direction until the locking sleeve 39 contacts the pressure plate 318, the pressure plate 318 moves inward, compresses the telescopic spring rod, and the pressure plate 318 moves inward. 18 contacts the connecting rod 317 at the same time, and squeezes the two connecting rods 317 arranged opposite to each other inwardly about the shaft rod, at which time the ends of the two connecting rods 317 are in an unfolded state, and the connecting rod 317 pulls the two limiting sleeves 311 away from the power storage wheel 313, and at the same time, the ends of the two transmission screws shrink synchronously, causing the transmission screw to lose connection with the power storage wheel 313, and the transmission screw is quickly reset by the coil spring, thereby driving the C-shaped sleeves on both sides to move forward relatively, and the cross bar frame column on the bearing plate 31 is continuously pushed forward until the cross bar is pushed to the maximum distance, and the cross bar and the vertical bar are in a connected state;

[0058] S4, at this time, due to the continuous forward movement of the two locking sleeves 39, the two locking sleeves 39 continue to squeeze the pressing plate 318 and shrink, and the two locking sleeves 39 squeeze the trigger plate 46, and the trigger plate 46 pushes the extension plate 45 to move downward, driving the double-sided gear 44 to mesh with the lower driving plate 42, and the lower driving plate 42 drives the outer ring sleeve 48 through the planetary gear 47 to start to rotate slowly;

[0059] S5. At the same time, the outer ring sleeve 48 drives the toggle wheel 414 meshing with it. Several toggle wheels 414 are connected by friction belts, so that several toggle wheels 414 rotate synchronously. The fitting wheels 415 on the side walls of several toggle wheels 414 push the arc plate 410 to perform circular motion in the arc frame 49, thereby pushing the welding rod 411 to weld the welding point, and the setting of the contact head 412 can control the length of the welding rod 411 when it contacts the material, so as to facilitate precise welding. Finally, when the arc plate 410 completes a circle of rotation, the reduction motor can be controlled to reverse, reset the arc plate 410, and at the same time push the power storage wheel 313 on the upper drive plate 32 to reverse, push the upper drive plate 32 to reverse and reset all components, so as to facilitate the staff to perform subsequent material collection operations.

[0060] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for producing a deformation-proof door frame, comprising a workbench (1), characterized in that: A deceleration motor is fixedly connected to the inner wall of the workbench (1), and a driving rod (2) is fixedly connected to the main shaft of the deceleration motor. A clamping mechanism (3) is arranged at the upper end of the workbench (1), and a transmission mechanism (4) is arranged inside the workbench (1). The clamping mechanism (3) includes a bearing plate (31). The bottom end of the bearing plate (31) is rotatably connected to an upper driving plate (32). The top end of the upper driving plate (32) has a gear surface formed by machining. Two groups of limiting wheels (33) are symmetrically arranged on both sides of the upper driving plate (32). A transmission belt (34) is connected between the upper driving plate (32) and the two driving wheels. Transmission wheels (35) are connected to the front and rear sides of the transmission belt (34), and transmission rods (36) are fixedly connected to the upper ends of the two transmission wheels (35). The outer wall of the transmission rod (36) is rotatably connected to the inner wall of the bearing plate (31). The top end of the transmission rod (36) is rotatably connected to a right-side rod (37). The front end of the right-side rod (37) has a gear structure formed by machining, and a left-side rod (38) is meshed with the side wall of the right-side rod (37). The structures of the right-side rod (37) and the left-side rod (38) are the same, and the ends of the right-side rod (37) and the left-side rod (38) are both hinged to a C-shaped locking sleeve (39). The transmission mechanism (4) includes a control sleeve (41). The top end of the control sleeve (41) is rotatably connected to the bottom end of the upper driving plate (32). The bottom end of the control sleeve (41) is rotatably connected to a lower driving plate (42), and meshing grooves are formed in the bottom end of the upper driving plate (32) and the top end of the lower driving plate (42). A shaft sleeve (43) is slidably connected to the inner wall of the control sleeve (41), and a double-sided gear (44) is rotatably connected to the inner wall of the shaft sleeve (43). The double-sided gear (44) is fixedly connected to the driving rod (2). Extension plates (45) are fixedly connected to the front and rear ends of the shaft sleeve (43), and a trigger plate (46) is fixedly connected to the top end of the extension plate (45). The top end of the trigger plate (46) is triangular, and the top end of the trigger plate (46) penetrates through the bearing plate (31). The transmission mechanism (4) further includes an arc-shaped frame (49). The outer wall of the arc-shaped frame (49) is fixedly connected to the inner walls of the workbench (1) and the bearing plate (31). An arc-shaped plate (410) is slidably connected to the inner wall of the arc-shaped frame (49). A welding rod (411) is fixedly connected to the inner wall of the arc-shaped plate (410), and the welding rod (411) is arranged in a spring telescopic rod structure. The front end of the welding rod (411) is fixedly connected to a contact head (412), and the top end of the contact head (412) has an arc-shaped surface formed by machining. One side of the arc-shaped frame (49) is fixedly connected with a limit plate (413), and a plurality of toggle wheels (414) are arranged in an annular array on the outer wall of the limit plate (413). A transmission belt (34) is used to connect between the plurality of toggle wheels (414). A fitting wheel (415) is fixedly connected to the side wall of each of the plurality of toggle wheels (414). The outer wall of the fitting wheel (415) is arranged in contact with the outer wall of the arc-shaped plate (410).

2. The welding device for producing a deformation-proof door frame according to claim 1, characterized in that: The clamping mechanism (3) further includes a transmission lead screw (310). The end of the transmission lead screw (310) is connected to the bearing plate (31) through a metal plate. Two groups of the transmission lead screws (310) are symmetrically arranged about the axis of the bearing plate (31). The thread directions of the two transmission lead screws (310) are opposite. A C-shaped sleeve is threadedly connected to each of the two transmission lead screws (310). The front ends of the two transmission lead screws (310) are both provided with a limit sleeve (311) in a penetrating manner. A plurality of tooth blocks (312) are inserted into the inner wall of the limit sleeve (311). Each of the plurality of tooth blocks (312) is connected to the inner wall of the limit sleeve (311) through a compression spring; A power storage wheel (313) is horizontally arranged between the two limit sleeves (311). The two sides of the power storage wheel (313) are respectively inserted and arranged with the front ends of the two transmission lead screws (310). A plurality of annularly arrayed tooth grooves are formed on the outer wall of the power storage wheel (313). The power storage wheel (313) is meshed with the gear surface of the upper drive plate (32). A limit rod (314) is fixedly connected to the outer wall of the power storage wheel (313); Mounting sleeves (315) are fixedly connected to the outer walls of the two limit sleeves (311). Sliding grooves (316) are formed on the outer walls of the two mounting sleeves (315). A connecting rod (317) is rotatably connected to the inner wall of the sliding groove (316). The connecting rods (317) on the two mounting sleeves (315) are arranged in a staggered and crossed manner. The centers of the two connecting rods (317) are connected through a rotating shaft. The end of the rotating shaft is connected to the bearing plate (31). Pressing plates (318) are horizontally arranged at both ends of the connecting rod (317). The bottoms of the two pressing plates (318) are both slidably connected to the bearing plate (31). A telescopic spring rod is fixedly connected between the two pressing plates (318).

3. The welding device for producing a deformation-proof door frame according to claim 2, wherein: The ends of the two transmission lead screws (310) are both arranged in a spring telescopic structure. A coil spring is used to connect between the outer walls of the two transmission lead screws (310) and the inner walls of the two limit sleeves (311).

4. A welding device for producing a deformation-proof door frame according to claim 3, characterized in that: The locking sleeve (39) comprises an inner cavity (391), the inner cavity (391) is provided in the inner wall of the locking sleeve (39), a limiting bin (392) is fixedly connected to the bottom wall of the inner cavity (391), a wedge plate (393) is slidably connected to the inner wall of the limiting bin (392), a bevel (394) is provided on the side wall of the wedge plate (393), a locking plate (395) is fitted on the side wall of the wedge plate (393), a pressure rod (396) is fitted at the front end of the wedge plate (393), and the outer wall of the pressure rod (396) is plugged into the inner wall of the locking sleeve (39).

5. The welding device for producing a deformation-proof door frame according to claim 4, characterized in that: A plurality of planetary gears (47) arranged in an annular array are meshed on the outer wall of the lower driving plate (42), an outer ring sleeve (48) is sleeved on the outer wall of the lower driving plate (42), the inner wall of the outer ring sleeve (48) is meshed with the planetary gears (47), and the planetary gears (47) are located between the outer ring sleeve (48) and the lower driving plate (42), and the outer wall of the outer ring sleeve (48) is rotatably connected to the inner wall of the workbench (1).

6. The welding device for producing a deformation-proof door frame according to claim 5, characterized in that: The outer walls of the two trigger plates (46) are both vertically slidably connected to the inner wall of the workbench (1), and the two trigger plates (46) and the locking sleeves (39) are arranged horizontally.

7. The welding device for producing a deformation-proof door frame according to claim 6, characterized in that: The side wall of the toggle wheel (414) at the bottom of the limit plate (413) has a helical gear structure formed by mechanical processing, and the outer wall of the toggle wheel (414) is meshed with the top end of the outer ring sleeve (48).

8. The usage method of a welding device for producing a deformation-proof door frame according to claim 7, characterized in that: The steps include: S1. With the start-up of the device, the staff places the vertical rod and the horizontal rod used for the door frame in the lock sleeve (39) and the middle area of the bearing plate (31), respectively. At this time, the reduction motor is driven. The reduction motor drives the double-sided gear (44) through the driving rod (2). The double-sided gear (44) is meshed with the upper driving plate (32), thereby driving the upper driving plate (32) to rotate. The upper driving plate (32) continues to rotate, driving the transmission belt (34) on its side to transmit power. The transmission belt (34) outputs power to the transmission wheels (35) on both sides. The transmission wheels (35) synchronously drive the transmission rod (36) to rotate. Since the left rod (38) and the right rod (37) are meshed, when the right rod (37) rotates inward, it can synchronously drive the left rod (38) to move synchronously; S2, as the right rod (37) and the left rod (38) on both sides of the bearing plate (31) are retracted inward, the vertical rod can be driven to close to the middle area through the locking sleeve (39) and continuously contact the cross rod. When the vertical rod and the cross rod are in contact, the vertical rod does not move. At this time, since the right rod (37) and the left rod (38) are arranged with a spring telescopic structure, the left rod (38) and the right rod (37) begin to contract and continuously push the locking sleeve (39) to close to the middle area of the vertical rod; S3, the two locking sleeves (39) are then closed and contact the pressure plate (318), at which time the pressure rod (396) in the locking sleeve (39) is pressed forward, pushing the wedge plate (393) forward and squeezing the locking plate (395), so that the locking plate (395) gradually rises and completely locks the vertical rod; As the upper drive plate (32) continuously rotates, the upper drive plate (32) drives the power storage wheel (313) to continuously rotate. The power storage wheel (313) and the two transmission screws (310) are plugged into each other, so that the power storage wheel (313) can drive the two transmission screws (310) to rotate in the limiting sleeve (311) and continuously store power through the coil spring. When the power storage wheel (313) rotates, the limiting rod (314) on the power storage wheel (313) squeezes the tooth block (312) to contract, so that the power storage wheel (313) can currently only rotate in one direction until the locking sleeve (39) contacts the pressure plate (318), and the pressure plate (318) moves inward, compressing and retracting. The spring rod and the pressure plate (318) contact the connecting rod (317) at the same time, and squeeze the two connecting rods (317) arranged in an interlaced manner inwardly about the shaft rod to close. At this time, the ends of the two connecting rods (317) are in an unfolded state, and the connecting rods (317) pull the two limit sleeves (311) away from the power storage wheel (313). At the same time, the ends of the two transmission screw rods are synchronously contracted, causing the transmission screw rod to lose connection with the power storage wheel (313). The transmission screw rod is quickly reset by the coil spring, thereby driving the C-shaped sleeves on both sides to move forward relatively, and the cross bar frame column on the bearing plate (31) is continuously pushed forward until the cross bar is pushed to the maximum distance, and the cross bar and the vertical rod are in a connected state; S4, at this time, due to the continuous forward movement of the two locking sleeves (39), the two locking sleeves (39) continuously squeeze the pressure plate (318) and after the pressure plate (318) contracts, the two locking sleeves (39) squeeze the trigger plate (46), and the trigger plate (46) pushes the extension plate (45) to move downward, driving the double-sided gear (44) to mesh with the lower driving plate (42), and the lower driving plate (42) drives the outer ring sleeve (48) through the planetary gear (47) to start to rotate slowly; S5. At the same time, the outer ring sleeve (48) drives the toggle wheel (414) meshed therewith, and the plurality of toggle wheels (414) are connected by a friction belt, so that the plurality of toggle wheels (414) rotate synchronously, and the fitting wheels (415) on the side walls of the plurality of toggle wheels (414) push the arc plate (410) to perform a circular motion in the arc frame (49), thereby pushing the welding rod (411) to weld the welding point, and the contact head (412) is arranged so that when it contacts the material, the length of the welding rod (411) can be controlled to facilitate precise welding. Finally, when the arc plate (410) completes one circle of rotation, the reduction motor can be controlled to reverse, the arc plate (410) can be reset, and at the same time, the power storage wheel (313) on the upper drive plate (32) can be reversed, and the upper drive plate (32) can be pushed to reverse to reset all components, thereby facilitating the subsequent material taking operation of the staff.

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