A welding device for outdoor product pipe skeleton

Abstract

The present invention discloses a device for welding a pipe skeleton of an outdoor product, which relates to the technical field of pipe welding, and includes an operating table and a fixing frame. Through the meshing action between two driving gears, two pipes to be welded are rotated toward each other by the same angle, thereby aligning the clamped skeleton body, ensuring that the pipes are symmetrical after welding. Compared with the method in the prior art in which a worker holds the pipe in one hand and uses a welding gun with the other hand to weld, the device controls the relative rotation angle of the two pipes, so that they complete the rotation toward each other according to the set angle, ensuring that the pipes are symmetrical after welding, avoiding the traditional welding technology that relies on the worker to adjust the angle by hand, and avoiding the inconsistent welding angles caused by manual operation errors. In this way, the symmetrical angles help to evenly distribute the welds, which can improve the structural strength after the skeleton welding is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe welding, and in particular to a pipe skeleton welding device for outdoor products. Background Art

[0002] The outdoor product pipe frame welding device is a device designed for welding pipe frames. The device uses a welding gun to weld the pipe to the frame body to form a frame. It is usually used in the manufacture of outdoor products such as outdoor furniture (such as the pipe frame of outdoor tables and chairs), outdoor awning brackets, and outdoor tent frames.

[0003] In the existing frame welding method, the frame body is usually fixed first, and the workers hold the pipes to be welded by hand for welding. This method relies on the workers to adjust the angle by hand. Due to the operational error of manually holding the pipes, the welding angles of the two pipes will be inconsistent. In addition, when holding the pipes for welding, it is difficult to ensure that the docking position of the pipes and the fixed frame is completely accurate. The human hand will inevitably produce slight shaking, which may cause uneven gaps between the pipes and the frame, resulting in cold welding and reduced strength of the frame structure. In addition, holding the pipes for welding for a long time will cause fatigue in the operator's arms and hands. As the fatigue level increases, the hand shaking will become more obvious, further affecting the welding quality.

[0004] In order to solve the above problems, the inventors proposed a welding device for outdoor product pipe skeletons. Summary of the Invention

[0005] In order to solve the above technical problems, a device for welding the pipe skeleton of an outdoor product is provided. This technical solution solves the problems of welding angle and cold welding raised in the above background technology.

[0006] To achieve the above objectives, the present invention can be implemented by adopting the following technical solutions:

[0007] The present invention provides a welding device for outdoor product pipe skeletons, comprising an operating table and a fixing frame, wherein a welding gun is provided on the top surface of the fixing frame, a guide rod 1 is fixedly connected to the fixing frame, a reciprocating screw rod is rotatably connected to the fixing frame, a handle is installed on the reciprocating screw rod, a clamping plate is threadedly connected to the reciprocating screw rod, two clamping plates are provided, and the clamping plates are slidably connected to the guide rod 1;

[0008] A co-rotation component is provided in the operating table, and the co-rotation component includes a servo motor fixedly connected to the inner cavity of the operating table. The inner cavity of the operating table is rotatably connected to a synchronous wheel 1, and two synchronous wheels are provided. The bottom of the synchronous wheel 1 is fixedly connected to a driving gear. The inner cavity of the operating table is rotatably connected to a chassis, and two chassis are provided. The bottom of the chassis is fixedly connected to a synchronous wheel 2, and the side of the chassis away from the synchronous wheel 2 is fixedly connected to a supporting block. The inner cavity of the operating table is fixedly connected to a gear speed increaser, and two gear speed increasers are provided.

[0009] Preferably, the output shaft of the servo motor is fixedly connected to one of the driving gears, the two driving gears are meshed with each other, and the synchronous wheel 1 is transmission-connected to the synchronous wheel 2.

[0010] Preferably, a rubber anti-slip pad is provided in the supporting block, and the input shaft of the gear speed increaser is fixedly connected to the second synchronous wheel.

[0011] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0012] Preferably, the threaded rod is fixedly connected to the output shaft of the gear speed increaser, and the second guide rod is fixedly connected to the operating table.

[0013] Preferably, a square hole is provided on the upper surface of the fixed cover, and the square hole is matched with the reset block, the long compression spring is fixedly connected to the threaded block, and the limit block is matched with the limit groove.

[0014] Preferably, a cleaning assembly is provided on the fixed frame, and the cleaning assembly includes a double-headed motor and a fixed plate fixedly connected to the fixed frame, the fixed plate is provided with two, a combination groove is opened on the surface of the fixed plate, the fixed plate is rotatably connected to a crank on the side close to the combination groove, the fixed plate is fixedly connected to a slide rail 1 on the side close to the combination groove, a double slider is slidably connected to the slide rail 1, and the double slider is slidably connected to the slide rail 2 on the side away from the slide rail 1, the slide rail 2 is fixedly connected to a limiting column on the side close to the fixed plate, and two cavity cylinders are detachably installed on the side of the slide rail 2 away from the limiting column, and a contact switch is fixedly connected to the upper surface of the operating table.

[0015] Preferably, the double-headed motor is electrically controlled and connected to the contact switch, the output shaft of the double-headed motor is fixedly connected to the crank through a universal joint, a long hole is opened on the surface of the crank, and the long hole is adapted to the limit column, and the limit column is adapted to the combination slot.

[0016] Preferably, a sponge and sandpaper are respectively provided in each of the cavity tubes.

[0017] From the above, the advantages of the present invention are:

[0018] Through the meshing action between the two driving gears, the two pipes to be welded are rotated towards each other by the same angle, thereby aligning with the clamped skeleton body, ensuring that the pipes are symmetrical after welding. Compared with the existing technology in which the worker holds the pipe in one hand and uses the welding gun with the other hand to weld, this device controls the relative rotation angle of the two pipes, so that they rotate towards each other according to the set angle, ensuring that the pipes are symmetrical after welding, avoiding the traditional welding technology that relies on workers to adjust the angle by hand, and avoiding inconsistent welding angles due to manual operation errors. In this way, the symmetrical angles help to evenly distribute the welds, which can improve the structural strength of the skeleton after welding.

[0019] This device uses a rubber pressure plate to provide vertical downward pressure when the pipe is rotated to the correct welding angle, and cooperates with a rubber anti-slip pad to fix the pipe, preventing slight movement or shaking caused by external forces during the welding process, and avoiding movement caused by manual support of the pipe, which may lead to uneven weld gaps and cold welds.

[0020] The support block continuously supports the pipe during the welding process and after welding. Compared with the existing technology that directly puts the pipe in a suspended state after welding is completed, or requires other tools to support the pipe, this device uses the support block to support the pipe, so as to avoid the pipe being in a suspended state after welding. The pipe in the suspended state after welding is completed will be affected by gravity, causing the pipe to fall and cause gaps in the weld or even breakage. In this way, the support of the support block can prevent the skeleton body from being subjected to the tension of the pipe immediately after welding is completed, avoiding the risk of weld cracking.

[0021] By moving the cavity tube, the grinding and cleaning of the pipe before welding is achieved. Compared with the existing technology, which uses different tools to perform manual grinding and dirt absorption respectively, the device integrates the steps of grinding and dirt absorption into one process, and uses the rotation of the crank to automatically complete the two steps alternately, avoiding the need for manual operation with the help of grinding tools and cleaning cloths. During storage or transportation, the surface of outdoor pipes is easily contaminated with oil, such as motor oil and anti-rust oil that may be contaminated during pipe processing, or dust, dirt and other dirt contaminated during transportation. Grinding with sandpaper can initially destroy the adhesion layer between the oil and the pipe surface, and wiping with a sponge can effectively remove these oil and dirt. In this way, during welding, good fusion between the welding material and the pipe base metal can be guaranteed, thereby improving the quality and strength of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front perspective schematic diagram of the overall structure shown in the present invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of the guide rod 1 and the reciprocating screw rod related components shown in the present invention;

[0024] Figure 3 It is a side perspective schematic diagram of the overall structure shown in the present invention;

[0025] Figure 4 This is a partially cutaway perspective diagram of the internal structure of the operating table shown in the present invention;

[0026] Figure 5 This is a three-dimensional schematic diagram of the chassis and synchronous wheel related components shown in the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the pressing assembly shown in the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the limit block and reset plate related components shown in the present invention;

[0029] Figure 8This is an exploded perspective diagram of the fixed cover and the long slide shown in the present invention;

[0030] Figure 9 This is a three-dimensional schematic diagram of the cleaning component shown in the present invention;

[0031] Figure 10 It is a three-dimensional schematic diagram of the combined slot and crank-related components shown in the present invention;

[0032] Figure 11 This is an exploded perspective diagram of the fixing plate and the slide rail shown in the present invention.

[0033] Wherein, the accompanying drawings in the present invention are:

[0034] 1. Operating table; 2. Fixed frame; 21. Welding gun; 31. Guide rod 1; 32. Reciprocating screw; 4. Clamping plate;

[0035] Co-rotating components: 51, servo motor; 52, synchronous wheel 1; 53, driving gear; 54, chassis; 55, synchronous wheel 2; 56, supporting block; 57, gear speed increaser;

[0036] Downward pressure assembly: 61, support frame; 62, threaded rod; 63, guide rod 2; 64, threaded block; 65, fixed cover; 66, long slide; 67, vertical plate; 68, limit slot; 69, long compression spring; 610, spring telescopic rod; 611, limit block; 612, reset plate; 613, reset block; 614, support spring; 615, rubber pressure plate;

[0037] Cleaning components: 71, double-headed motor; 72, fixed plate; 73, combination slot; 74, crank; 75, slide rail 1; 76, double slider; 77, slide rail 2; 78, limit column; 79, cavity cylinder; 710, contact switch. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] The embodiments provided by the present invention will be described in detail below:

[0040] A welding device for outdoor product pipe skeleton, such as Figure 1 and Figure 2As shown, it includes an operating table 1 and a fixing frame 2. A cavity is provided inside the operating table 1 near the upper part. A welding gun 21 is provided on the upper surface of the fixing frame 2. The welding gun 21 is used to weld the pipe to the skeleton body. A guide rod 31 is fixedly connected to the fixing frame 2. A reciprocating screw rod 32 is rotatably connected to the side of the fixing frame 2 near the guide rod 31. A handle is installed at one end of the reciprocating screw rod 32. A clamping plate 4 is threadedly connected to the outer surface of the reciprocating screw rod 32. Two clamping plates 4 are provided, and the clamping plates 4 are slidably connected to the guide rod 31. The staff can rotate the handle so that the two clamping plates 4 can move closer to or farther away from each other.

[0041] like Figures 4 to 6 As shown, a co-rotating component is provided in the operating table 1, and the co-rotating component includes a servo motor 51 fixedly connected to the bottom surface of the inner cavity of the operating table 1, and the top surface of the inner cavity of the operating table 1 is rotatably connected to a synchronous wheel 1 52, and two synchronous wheels 52 are symmetrically provided. The bottom surface of the synchronous wheel 1 52 is fixedly connected to a driving gear 53, and the inner cavity of the operating table 1 is rotatably connected to a chassis 54, and the number of chassis 54 is consistent with the number of synchronous wheels 1 52, and the bottom surface of the chassis 54 is fixedly connected to a synchronous wheel 2 55, and the upper surface of the chassis 54 is fixedly connected to a supporting block 56, and the bottom surface of the inner cavity of the operating table 1 is fixedly connected to a gear speed increaser 57, and the number of gear speed increasers 57 is consistent with the number of synchronous wheels 1 52.

[0042] Further, such as Figure 4 and Figure 5 As shown, the output shaft of the servo motor 51 is fixedly connected to one of the driving gears 53, the two driving gears 53 are meshed with each other, and the two synchronous wheels 1 52 are transmission-connected to the two synchronous wheels 2 55 on the same side through a synchronous belt.

[0043] Further, such as Figure 5 As shown, a rubber anti-skid pad is provided in the support block 56, and the rubber anti-skid pad is provided with horizontal and vertical lines, which is used to prevent the pipe from moving and rotating during cleaning and welding. The input shaft of the gear speed increaser 57 is fixedly connected to the synchronous wheel 2 55.

[0044] Further, such as Figures 5 to 8As shown, the operating table 1 is provided with a pressing assembly, which includes a support frame 61 fixedly connected to the upper surface of the operating table 1. There are two support frames 61 symmetrically provided. The side of the support frame 61 close to the operating table 1 is rotatably connected to a threaded rod 62. The side of the support frame 61 close to the threaded rod 62 is fixedly connected to a guide rod 2 63. The outer surface of the threaded rod 62 is threadedly connected to a threaded block 64. The side of the threaded block 64 close to the supporting block 56 is fixedly connected to a fixed cover 65. A long slide 66 is slidably connected in the fixed cover 65. The long slide 66 is set to be hollow. A rubber pressure plate 615 is slidably connected to the inner cavity of the long slide 66. Two supporting springs 614 are symmetrically fixedly connected between the inner cavity of the long slide 66 and the rubber pressure plate 615. The long slide 66 is located obliquely above the supporting block 56. The upper surface of the long slide 66 is fixedly connected to a vertical plate 67. A limiting groove 68 is provided on one side of the slide 66 close to the vertical plate 67, and two long compression springs 69 are fixedly connected to one side of the long slide 66 close to the threaded block 64. The long compression spring 69 is in a compressed state, and a spring telescopic rod 610 is fixedly connected to the top surface of the inner cavity of the fixed cover 65. The spring telescopic rod 610 is in a compressed state, and the bottom surface of the spring telescopic rod 610 is fixedly connected to a limiting block 611. The lower end part of the limiting block 611 is located inside the limiting groove 68, and a reset plate 612 is rotatably connected to the side wall of the inner cavity of the fixed cover 65. A side of the limiting block 611 close to the reset plate 612 is set as a cavity, and the lower end of the reset plate 612 extends to the inside of the cavity of the limiting block 611, and the reset plate 612 is in an inclined state. A reset block 613 is fixedly connected to the side of the support frame 61 close to the fixed cover 65, and the reset block 613 is located directly above the reset plate 612.

[0045] Further, such as Figure 5 and Figure 6 As shown, one end of the threaded rod 62 away from the support frame 61 is fixedly connected to the output shaft of the gear speed increaser 57 , and one end of the guide rod 2 63 away from the support frame 61 is fixedly connected to the operating platform 1 .

[0046] Further, such as Figures 6 to 8 As shown, a square hole is provided on the upper surface of the fixed cover 65, and the square hole is adapted to the size of the reset block 613. The square hole is located directly below the reset block 613. The end of the long compression spring 69 away from the long slide 66 is fixedly connected to the threaded block 64, and the limit block 611 is adapted to the size of the limit groove 68.

[0047] Further, such as Figures 9 to 11As shown, a cleaning assembly is provided on the fixing frame 2, and the cleaning assembly includes a double-headed motor 71 and a fixing plate 72 fixedly connected to the fixing frame 2. There are two fixing plates 72 symmetrically provided, and the fixing plates 72 are respectively located on the left and right sides of the double-headed motor 71. A combination groove 73 is provided on the side of the fixing plate 72 away from the double-headed motor 71. The combination groove 73 consists of an arc groove and two straight grooves. The two straight grooves are respectively connected at the upper and lower ends of the arc groove. A crank 74 is rotatably connected to the side of the fixing plate 72 close to the combination groove 73. A crank 74 is fixedly connected to the side of the fixing plate 72 close to the combination groove 73. Slide rail 1 75, slide rail 1 75 is slidably connected with a double slider 76, the double slider 76 is slidably connected with slide rail 2 77 on the side away from slide rail 1 75, slide rail 2 77 is fixedly connected to the side close to the fixed plate 72 with a limiting column 78, the limiting column 78 is located in the middle of the combination groove 73, and two cavity tubes 79 are provided on the side of slide rail 2 77 away from the limiting column 78, the cavity tube 79 is detachably mounted on slide rail 2 77 by bolts, and the upper surface of the operating table 1 is fixedly connected with a contact switch 710, and the contact switch 710 is located on the side of the supporting block 56 close to the support frame 61.

[0048] Further, such as Figure 9 As shown, the double-headed motor 71 is electrically controlled and connected to the contact switch 710. The output shaft of the double-headed motor 71 is fixedly connected to the crank 74 through a universal joint. A long hole is opened on the surface of the crank 74, and the diameter of the long hole is adapted to the diameter of the limiting column 78. The limiting column 78 can slide in the long hole of the crank 74. The limiting column 78 can slide in the combination slot 73, and the diameter of the limiting column 78 is adapted to the combination slot 73.

[0049] Further, such as Figure 10 and Figure 11 As shown, sandpaper is provided in the cavity tube 79 located at the upper part of the slide rail 2 77, and the sandpaper is used to remove oxides from the welding end of the pipe. A wet sponge is placed in the cavity tube 79 located at the lower part of the slide rail 2 77, and is used to remove dirt from the welding end of the pipe.

[0050] While working:

[0051] Initial limitation: When the pipe to be welded is placed on the support block 56, the position of the pipe axis and the midpoint of the two cavity tubes 79 are located on the same horizontal line. Initially, the cavity tube 79 of appropriate size can be selected according to the size of the pipe and installed on the slide rail 2 77 by bolts.

[0052] Before welding the pipe, the device can polish and clean the pipe to avoid the formation of pores during welding, which will lead to a decrease in welding strength. The detailed steps are as follows:

[0053] The staff first places the skeleton body between the two clamping plates 4, and then rotates the handle at one end of the reciprocating screw 32 clockwise, so that the two clamping plates 4 move horizontally along the guide rod 31 in the direction of approaching each other until the two clamping plates 4 are close to the outer wall of the skeleton body. At this time, the staff stops rotating the handle at one end of the reciprocating screw 32, and the fixation of the skeleton body is completed. After the fixation of the skeleton body is completed, the staff places the two pipes to be welded on the support block 56 respectively, and makes one end of the pipe close to the inner wall of the support block 56 away from the open side. When the pipes are placed Afterwards, the staff starts the servo motor 51 through the controller, causing the output shaft of the servo motor 51 to rotate forward fifteen degrees, and the output shaft of the servo motor 51 stops rotating after rotating forward fifteen degrees. During the process of the output shaft of the servo motor 51 rotating forward fifteen degrees, the two driving gears 53 rotate fifteen degrees in opposite directions respectively, driving the synchronous wheel 1 52 to rotate together with the driving gear 53. Under the action of the synchronous belt, the synchronous wheel 2 55 and the chassis 54 rotate together with the driving gear 53, and further the chassis 54 drives the supporting block 56 and the pipe to rotate fifteen degrees toward the side close to the support frame 61.

[0054] Since the surface of outdoor pipes is easily contaminated with oil during storage or transportation, such as engine oil and anti-rust oil that may be contaminated during pipe processing, or dust, dirt and other dirt contaminated during transportation, the output shaft of the servo motor 51 stops rotating after rotating fifteen degrees forward, so the support block 56 also stops rotating. At this time, the outer wall of the support block 56 touches the contact switch 710, and the contact switch 710 sends a signal to the controller to start the double-headed motor 71. The double-headed motor 71 can initially be set to forward and reverse through the existing program. First, the output shaft of the double-headed motor 71 rotates forward, driving the crank 74 to rotate clockwise. Figure 10The cam 76 is rotated clockwise, and during the clockwise rotation of the crank 74, the long hole on the surface of the crank 74 pushes the limit post 78, so that the limit post 78 moves along the combination groove 73 until the limit post 78 moves to the end of the straight groove at the bottom of the combination groove 73, and the output shaft of the double-headed motor 71 stops rotating. During the movement of the limit post 78 from the middle of the curved groove of the combination groove 73 to the straight groove of the combination groove 73, the double slider 76 moves vertically downward along the slide rail 1 75, and at the same time, the slide rail 2 77 moves along the double slider 76 toward the side of the pipe, so that the cavity cylinder 7 located at the upper part and provided with sandpaper inside is 9 moves to a position on the same horizontal line as the pipe and gradually wraps the pipe. The sandpaper can be used to grind the end of the pipe that needs to be welded to remove dirt such as mud. When the limit post 78 reaches the end of the lower straight groove of the combination groove 73, the output shaft of the double-headed motor 71 is reversed, driving the crank 74 to rotate counterclockwise. During the counterclockwise rotation of the crank 74, the long hole on the surface of the crank 74 pushes the limit post 78, so that the limit post 78 moves along the combination groove 73 until the limit post 78 moves to the end of the upper straight groove of the combination groove 73, and the output shaft of the double-headed motor 71 stops rotating.

[0055] Afterwards, the output shaft of the double-headed motor 71 drives the crank 74 to rotate counterclockwise. During the process of the limit column 78 moving from the end of the straight groove at the lower part of the combination groove 73 to the initial end of the straight groove, the cavity tube 79 with sandpaper inside moves horizontally in the direction away from the side of the pipe, so that the cavity tube 79 with sandpaper inside is separated from the pipe. During this process, the sandpaper again grinds the end of the pipe to be welded to remove the oxide layer on its surface.

[0056] During the process of the limiting post 78 moving from the initial end of the lower straight groove of the combined groove 73 to the initial end of the upper straight groove of the combined groove 73, the double slider 76 moves vertically upward along the slide rail 1 75, and at the same time, the slide rail 2 77 moves along the double slider 76 in a direction away from the pipe, so that the cavity cylinder 79 with the moist sponge inside moves to a position on the same horizontal line as the pipe.

[0057] As the crank 74 continues to rotate counterclockwise, the slide rail 2 77 will first move upward and then gradually drive the cavity tube 79 at the lower end and with a moist sponge inside to approach the pipe. Then the cavity tube 79 gradually wraps the pipe, and the moist sponge cleans the end of the pipe that needs to be welded and absorbs the dirt on its surface. When the limit column 78 reaches the end of the upper straight groove of the combination groove 73, the output shaft of the double-headed motor 71 rotates forward, driving the crank 74 to rotate clockwise, so that the slide rail 2 77 moves horizontally first and then moves downward, driving the cavity tube 79 with a moist sponge inside to disengage and move away from the pipe. The moist sponge cleans the end of the pipe that needs to be welded again and absorbs the dirt on its surface. Until the crank 74 rotates back to the initial position, the output shaft of the double-headed motor 71 stops rotating.

[0058] During the above process, the movement of the cavity tube 79 is used to achieve the grinding and cleaning of the pipe before welding. Compared with the prior art, in which different tools are used manually to perform grinding and adsorb dirt respectively, the present device integrates the steps of grinding and adsorbing dirt into one process, and uses the rotation of the crank 74 to automatically complete the two steps alternately, avoiding the need for manual operation with the help of grinding tools and cleaning cloths. Grinding with sandpaper can preliminarily destroy the adhesion layer between the oil and the pipe surface, and wiping with a sponge can effectively remove these oil and dirt. In this way, during welding, good fusion between the welding material and the base metal of the pipe can be guaranteed, thereby improving the quality and strength of the weld.

[0059] When the output shaft of the servo motor 51 rotates forward fifteen degrees, the output shaft of the gear speed increaser 57 drives the threaded rod 62 to rotate forward, so that the threaded block 64 and the fixed cover 65 move vertically upward along the guide rod 2 63 until the output shaft of the servo motor 51 stops rotating. The threaded block 64 and the fixed cover 65 stop moving vertically upward. During this process, the reset block 613 gradually passes through the square hole opened on the surface of the fixed cover 65 and pushes the reset plate 612 away from one end of the limit block 611, so that the reset plate 612 rotates counterclockwise around the rotation connection with the inner cavity side wall of the fixed cover 65 as the axis. The reset plate 612 is located at one end of the inner cavity of the limit block 611 and pushes the limit block 611, further causing the limit block 611 to move vertically upward and the spring telescopic rod 610 to be compressed.

[0060] When the limit block 611 leaves the limit groove 68, the long slide 66 is no longer restricted by the limit block 611. The long slide 66 moves horizontally along the inner cavity of the fixed cover 65 toward the side away from the threaded block 64 with the help of the rebound of the long compression spring 69 until the long slide 66 can no longer move horizontally. At this time, the long slide 66 is located above the pipe, so that the pipe can be fixed and limited after the angle is adjusted.

[0061] This device can make the two pipes to be welded rotate to the same angle, which is convenient for welding. The detailed steps are as follows:

[0062] After completing the cleaning before pipe welding, the staff starts the servo motor 51 through the controller, so that the output shaft of the servo motor 51 is reversed, and the rotation angle is an angle for welding. During this process, the two driving gears 53 rotate in opposite directions respectively, and the driving gear 53 drives the synchronous wheel 1 52 to rotate together. Under the action of the synchronous belt, the synchronous wheel 2 55 and the chassis 54 rotate together with the driving gear 53, and further the chassis 54 drives the supporting block 56 to rotate toward the side close to the skeleton body. When it rotates to the welding angle, the output shaft of the servo motor 51 stops rotating, so that the pipe to be welded on the supporting block 56 also stops rotating. At this time, the two pipes are aligned with the clamped skeleton body.

[0063] During the reversal of the synchronous wheel 2 55, the structural characteristics of the gear speed increaser 57 are utilized to make the rotation speed of the threaded rod 62 at the output shaft end of the gear speed increaser 57 greater than the rotation speed of the synchronous wheel 2 55 at the input shaft end of the gear speed increaser 57, so that the output shaft of the gear speed increaser 57 drives the threaded rod 62 to reverse. During this process, the threaded block 64 moves vertically downward along the guide rod 2 63. When the output shaft of the servo motor 51 stops rotating, that is, when the pipe rotates to the welding angle, the rubber pressure plate 615 in the inner cavity of the long slide 66 just contacts the surface of the pipe, which plays a limiting role on the pipe and prevents the pipe from shaking during the welding process. Afterwards, the staff can use the welding gun 21 to weld the two pipes to the skeleton body.

[0064] It should be noted that the bottom of the rubber pressure plate 615 is set to be arc-shaped, so when the rubber pressure plate 615 contacts the pipe, it will move upward and compress the support spring 614 to shrink, thereby adapting to pipes of different diameters for limited pressing.

[0065] During the above process, the two pipes to be welded are rotated toward each other at the same angle through the meshing action between the two driving gears 53, thereby aligning the clamped skeleton body, ensuring that the pipes are symmetrical after welding. Compared with the prior art method in which the worker holds the pipe in one hand and uses the welding gun 21 for welding with the other hand, the present device controls the relative rotation angle of the two pipes so that they complete the rotation toward each other according to the set angle, ensuring that the pipes are symmetrical after welding, avoiding the traditional welding technology that relies on the worker to adjust the angle by hand, and the inconsistent welding angles caused by manual operation errors such as eye observation deviation or hand shaking. In this way, the symmetrical angles help to evenly distribute the welds, which can improve the structural strength of the skeleton after welding.

[0066] During the above process, the rubber pressure plate 615 at the bottom of the long slide 66 cooperates with the rubber anti-slip pad in the support block 56 to keep the pipe stationary during welding. Compared with the prior art method of manually supporting the pipe for welding, the present device uses the rubber pressure plate 615 to provide vertical downward pressure when the pipe is rotated to the correct welding angle, and cooperates with the rubber anti-slip pad to fix the pipe, preventing slight movement or shaking caused by external force during the welding process, and avoiding movement caused by manual support of the pipe, resulting in uneven weld gaps and cold welds.

[0067] After the welding of the two pipes is completed, the staff waits for five minutes. During the waiting process, the support block 56 supports the pipe to prevent the pipe from being in a suspended state and causing the weld to crack. When the waiting time is over, the staff pushes the vertical plate 67 to make the long slide 66 move horizontally along the side wall of the inner cavity of the fixed cover 65 toward the side close to the threaded block 64. During this process, the end of the vertical plate 67 close to the long compression spring 69 contacts the inclined surface of the limit block 611 and squeezes the limit block 611, causing the limit block 611 to move vertically upward, the spring telescopic rod 610 is compressed, and the reset plate 612 rotates counterclockwise.

[0068] When the bottom surface of the limit block 611 contacts the surface of the vertical plate 67, the limit block 611 stops moving up vertically. As the vertical plate 67 continues to move horizontally, when the limit slot 68 is located below the limit block 611, the limit block 611 moves down vertically with the help of the rebound of the spring telescopic rod 610 until the bottom surface of the limit block 611 contacts the bottom surface of the inner cavity of the limit slot 68. During this process, the reset plate 612 rotates clockwise around the rotating connection with the inner cavity side wall of the fixed cover 65 until it rotates back to the initial position. When the limit block 611 is located inside the limit slot 68, the staff stops pushing the vertical plate 67. At this time, the long slide 66 and the rubber pressure plate 615 at the bottom thereof have left the top of the pipe and are located in the initial position, which is convenient for pressing down the pipe to be welded next time.

[0069] During the above process, the support block 56 continuously supports the pipe during the welding process and after the welding is completed. Compared with the existing technology, after the welding is completed, the pipe is directly suspended, or other tools are needed to support the pipe. The present device uses the support block 56 to support the pipe, so as to avoid the pipe being suspended after welding. After the welding is completed, the pipe in the suspended state will be affected by gravity, causing the pipe to fall and cause gaps in the weld or even breakage. In this way, the support of the support block 56 can prevent the skeleton body from being immediately subjected to the tension of the pipe after the welding is completed, thereby avoiding the risk of cracking the weld.

[0070] Then the staff uses the controller to make the output shaft of the servo motor 51 rotate forward until the supporting block 56 rotates back to the initial position. At this time, the staff uses the controller to stop the output shaft of the servo motor 51 from rotating. When the supporting block 56 rotates back to the initial position, the staff rotates the handle at one end of the reciprocating screw 32 counterclockwise, so that the two clamping plates 4 move horizontally along the guide rod 31 in the direction of moving away from each other until the two clamping plates 4 leave the outer wall of the skeleton body. At this time, the staff stops turning the handle and moves the skeleton body vertically upward. When the next welding point to be welded reaches the previous welding point, the staff stops moving the skeleton body upward and turns the handle clockwise, so that the two clamping plates 4 move horizontally along the guide rod 31 in the direction of moving closer to each other until the two clamping plates 4 are close to the outer wall of the skeleton body. At this time, the staff stops turning the handle, and the fixation of the skeleton body is completed. Repeat the above steps to carry out the next skeleton welding work.

[0071] The above descriptions are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding device for outdoor product pipe skeleton, comprising an operating table (1) and a fixing frame (2), characterized in that: A welding gun (21) is provided on the top surface of the fixing frame (2), a guide rod (31) is fixedly connected to the fixing frame (2), a reciprocating screw rod (32) is rotatably connected to the fixing frame (2), a handle is installed on the reciprocating screw rod (32), a clamping plate (4) is threadedly connected to the reciprocating screw rod (32), two clamping plates (4) are provided, and the clamping plates (4) are slidably connected to the guide rod (31); The operating table (1) is provided with a co-rotating component, and the co-rotating component includes a servo motor (51) fixedly connected to the inner cavity of the operating table (1); the inner cavity of the operating table (1) is rotatably connected to a synchronous wheel (52), two of which are provided; the bottom of the synchronous wheel (52) is fixedly connected to a driving gear (53); the inner cavity of the operating table (1) is rotatably connected to a chassis (54), two of which are provided; the bottom of the chassis (54) is fixedly connected to a synchronous wheel (55); a side of the chassis (54) away from the synchronous wheel (55) is fixedly connected to a supporting block (56); the inner cavity of the operating table (1) is fixedly connected to a gear speed increaser (57), and two of which are provided; The fixing frame (2) is provided with a cleaning assembly, and the cleaning assembly includes a double-headed motor (71) and a fixing plate (72) fixedly connected to the fixing frame (2), two fixing plates (72) are provided, a combination groove (73) is provided on the surface of the fixing plate (72), a crank (74) is rotatably connected to the side of the fixing plate (72) close to the combination groove (73), a slide rail (75) is fixedly connected to the side of the fixing plate (72) close to the combination groove (73), a double slider (76) is slidably connected to the slide rail (75), a side of the double slider (76) away from the slide rail (75) is slidably connected to the slide rail (77), a side of the slide rail (77) close to the fixing plate (72) is fixedly connected to a limiting column (78), a side of the slide rail (77) away from the limiting column (78) is detachably mounted with two cavity cylinders (79), and a contact switch (710) is fixedly connected to the upper surface of the operating table (1); The double-headed motor (71) is electrically controlled and connected to the contact switch (710); the output shaft of the double-headed motor (71) is fixedly connected to the crank (74) via a universal joint; a long hole is provided on the surface of the crank (74); the long hole is matched with a limiting column (78); and the limiting column (78) is matched with the combination slot (73); A sponge and sandpaper are respectively arranged in each of the cavity tubes (79).

2. The outdoor product pipe skeleton welding device according to claim 1, characterized in that: The output shaft of the servo motor (51) is fixedly connected to one of the driving gears (53), the two driving gears (53) are meshed and connected with each other, and the synchronous wheel 1 (52) is transmission-connected to the synchronous wheel 2 (55).

3. The outdoor product pipe skeleton welding device according to claim 1, characterized in that: A rubber anti-skid pad is provided inside the supporting block (56), and the input shaft of the gear speed increaser (57) is fixedly connected to the second synchronous wheel (55).

4. The outdoor product pipe skeleton welding device according to claim 1, characterized in that: The operating table (1) is provided with a pressing assembly, and the pressing assembly includes a support frame (61) fixedly connected to the operating table (1), and the support frame (61) is provided with two, a threaded rod (62) is rotatably connected to the support frame (61), a guide rod (63) is fixedly connected to the support frame (61), a threaded block (64) is threadedly connected to the threaded rod (62), a fixed cover (65) is fixedly connected to the side of the threaded block (64) close to the supporting block (56), a long slide (66) is slidably connected in the fixed cover (65), the long slide (66) is set to be hollow, and a rubber pressure plate (615) is slidably connected to the inner cavity of the long slide (66), and the long slide Two supporting springs (614) are symmetrically fixedly connected between the inner cavity (66) and the rubber pressure plate (615); the upper surface of the long slide (66) is fixedly connected to a vertical plate (67); a limiting groove (68) is provided on the long slide (66); a long compression spring (69) is fixedly connected to the side of the long slide (66) close to the threaded block (64); the inner cavity of the fixed cover (65) is fixedly connected to a spring telescopic rod (610); the bottom of the spring telescopic rod (610) is fixedly connected to a limiting block (611); the inner cavity of the fixed cover (65) is rotatably connected to a reset plate (612); and the side of the support frame (61) close to the fixed cover (65) is fixedly connected to a reset block (613).

5. The outdoor product pipe skeleton welding device according to claim 4, characterized in that: The threaded rod (62) is fixedly connected to the output shaft of the gear speed increaser (57), and the second guide rod (63) is fixedly connected to the operating platform (1).

6. The outdoor product pipe skeleton welding device according to claim 4, characterized in that: A square hole is provided on the upper surface of the fixed cover (65), and the square hole is matched with the reset block (613). The long compression spring (69) is fixedly connected to the threaded block (64), and the limiting block (611) is matched with the limiting groove (68).

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