A hydraulic tilting mechanism for automatic circumferential welding of seams

Abstract

This invention discloses an automatic welding device for the circumferential seam of a hydraulic cylinder with a tilting mechanism, which relates to the field of welding technology. Through the combined action of a burr removal component and multiple contour-following support components, the outer contour of the cylinder section can be simulated and contoured before forming support. This allows the tops of the burr removal component and some of the contour-following support components to form a contour shape that matches the cylinder section, creating a ring-shaped enclosure of the lower part of the cylinder section and providing stable support. When the support components form support for the bottom of the cylinder section, they work with the multiple contour-following support components on both sides to form simulated support for the cylinder section. Furthermore, while supporting the cylinder section, a high-speed rotating grinding wheel can grind the welded circumferential seam, removing metal burrs and weld slag generated during welding, avoiding stress concentration at the tips, and ensuring the connection strength of the weld.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to an automatic welding equipment for circumferential seams using a hydraulic tilting mechanism. Background Technology

[0002] The working principle of a hydraulic tilting machine is based on hydraulic oil as a power source. A hydraulic pump delivers hydraulic oil to both sides of the cylinder, causing the piston on the cylinder to move up and down. This force is transmitted to the tilting device through a lever mechanism, thus tilting the object.

[0003] As the core component of the hydraulic tilting mechanism, the oil cylinder often requires circumferential welding at the connection point of the two cylinder sections to form a complete cylinder body when the two cylinder sections are combined into one cylinder body, so as to form a stable cylinder body.

[0004] Referring to the patent application with publication number CN209936157U, an automatic circumferential welding machine for water tank processing is described. By setting up a welding gas filtration structure, it can filter and absorb dust and harmful gases generated during the welding process in a timely manner, reducing the content of welding dust and harmful gases in the air of the work area, ensuring a healthy and clean working environment, and thus reducing the threat of welding exhaust gas to the health of workers. The shock absorption structure reduces the impact of vibration generated during the rotation of the water tank on the welding process, so that the welding head can more accurately fit the position to be welded, improving the welding precision, ensuring product quality, and reducing the manufacturer's profit loss.

[0005] Existing automatic circumferential welding equipment mostly uses clamping fixtures to hold and fix the two ends of the workpieces to be welded during circumferential welding. However, when the clamping fixtures rotate the workpieces, the weld positions of the two workpieces are prone to shaking and displacement during rotation, resulting in uneven welds and affecting the structural strength of the welded area. Secondly, under the high temperature of the welding torch, the metal around the weld is easily melted, and the excess metal and oxides accumulate on the weld, forming burrs on the outer surface, which not only affects the flatness of the weld. In addition to smoothness, it is also easy to generate stress concentration at the tip, which reduces the structural strength of the weld. The weld position still needs to be ground afterward before the next processing step, thus increasing the processing steps and workload. For example, according to the automatic circumferential welding machine for water tank processing with reference to the publication number CN209936157U, the welding machine only clamps the two ends of the water tank. The circumferential seam to be welded is very easy to shake during the rotation of the water tank, which causes the weld position to shift and misalign, resulting in uneven weld and thus affecting the structural strength of the weld position.

[0006] Therefore, this invention proposes an automatic welding device for circumferential seams using a hydraulic tilting mechanism to solve the above-mentioned problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an automatic circumferential welding device with a hydraulic tilting mechanism. This device solves the problem that when existing clamping fixtures rotate the workpiece, the weld seam position of the two workpiece segments is prone to wobbling and displacement during rotation, resulting in uneven weld seams and affecting the structural strength of the welded area. Furthermore, under the high temperature of the welding torch, the metal around the weld seam is easily melted, and excess metal and oxides accumulate on the weld seam, forming burrs on the outer surface. This not only affects the flatness and smoothness of the weld seam but also easily causes stress concentration at the tip, reducing the structural strength of the weld seam. Post-weld grinding is still required, increasing processing steps and workload.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams, comprising a welding table and two sliding tables fixedly disposed on both sides of the top of the welding table, and further comprising:

[0009] A clamping fixture is set on the top of the welding table and is used to clamp the two cylinder sections to be welded. The clamping fixture includes a No. 1 chuck set on the left side of the top of the welding table for clamping one cylinder section and driving the cylinder section to rotate, and a driven clamping unit for clamping the other cylinder section.

[0010] The lifting mechanism is slidably set outside the two sliding tables. It is used to simulate and shape the outline of the two cylindrical sections to be welded, and then lift and support the weld seam of the two cylindrical sections. At the same time as circumferential welding, it grinds the burrs and slag generated at the weld seam.

[0011] The linear module is fixedly mounted on the side wall of the welding table and is used for lateral and longitudinal linear movement and positioning.

[0012] The welding torch, mounted on a bracket at the bottom of the linear module, is used to weld the circumferential seam between the two cylinder sections.

[0013] Furthermore, the driven clamping unit includes a support seat that is simultaneously slidably sleeved on the outer walls of two slides, and a second chuck is rotatably mounted on the side wall of the first chuck for clamping and fixing one section of the hydraulic cylinder.

[0014] Furthermore, the lifting mechanism includes a slide seat slidably mounted on the outer walls of two slide tables and columns fixedly mounted on the four corners of the top of the slide seat. A housing assembly is slidably mounted on the outer walls of the four columns, and the housing assembly and the columns are locked together by fastening bolts. An movable gap is formed between the housing assembly and the slide seat. The housing assembly includes a mounting box, and side plates are detachably mounted on the front and rear side walls of the mounting box by bolts. A cover plate is also detachably mounted on the top of the mounting box.

[0015] The mounting box has a burr removal component for grinding the weld seam located in the middle. On both sides of the burr removal component, there are also multiple contour lifting components for supporting the cylinder section to be welded. The burr removal component and the multiple contour lifting components slide through the cover plate and extend to the outside. Movable grooves are opened on both sides of the inner wall of the mounting box. The two movable grooves are jointly provided with a drive component for simultaneously locking or unlocking the position of the burr removal component and the multiple contour lifting components.

[0016] Furthermore, the deburring assembly includes a base plate and a first transmission box and a second transmission box fixedly disposed on the top two sides of the base plate. A toothed plate for position locking in conjunction with a drive assembly is fixedly disposed on the opposite sidewalls of the base plate and the first transmission box. A lifting rod is fixedly disposed at the bottom center of the base plate. A spring is slidably sleeved on the outer wall of the lifting rod, located between the base plate and the first transmission box. A drive shaft is rotatably disposed between the opposite sidewalls of the first and second transmission boxes. A grinding wheel is fixedly sleeved at the middle position of the outer wall of the drive shaft. A power assembly for driving the drive shaft to rotate is also disposed inside the second transmission box.

[0017] Furthermore, the power assembly includes a driven gear fixedly sleeved on the outer wall of the transmission shaft and a motor fixedly sleeved on the outer wall of the second transmission box. The output shaft of the motor rotates through the second transmission box and is fixedly sleeved with a drive gear. The outer walls of the drive gear and the driven gear are jointly sleeved with a toothed belt for transmitting power.

[0018] Furthermore, the contour lifting assembly includes a support column that slides through the cover plate and a guide block fixedly disposed on the side wall of the support column. The top of the support column is provided with a lifting platform for supporting the cylinder section.

[0019] The lifting platform includes a U-shaped seat that is detachably mounted on top of a support column. The top two sides of the U-shaped seat are provided with mounting slots, and multiple guide wheels are rotatably mounted inside each mounting slot.

[0020] A through groove is provided on the outer wall of the support column, and toothed plates are fixedly provided on both sides of the inner wall of the through groove. A lifting rod is fixedly provided at the bottom end of the support column, and a spring is slidably provided on the outer wall of the lifting rod and between the support column and the mounting box.

[0021] Furthermore, the drive assembly includes a first limiting plate assembly and a second limiting plate assembly arranged opposite to each other. The first limiting plate assembly and the second limiting plate assembly have the same structure. A push rod assembly for pushing the first limiting plate assembly and the second limiting plate assembly away from each other is also provided between the first limiting plate assembly and the second limiting plate assembly.

[0022] Furthermore, the first limiting plate assembly includes a long strip plate with both ends slidably disposed inside two movable slots. Arc-shaped protrusions for use with push rod assemblies are fixedly disposed on both sides of the side wall of the long strip plate near the second limiting plate assembly. Multiple positioning racks are evenly disposed on the outer wall of the long strip plate away from the arc-shaped protrusions. Guide rods are fixedly disposed on both ends of the side wall of the long strip plate away from the second limiting plate assembly. Springs are slidably sleeved on the outer wall of the guide rods.

[0023] Furthermore, the push rod assembly includes a screw and a guide rod 2 rotatably mounted on the inner wall of the mounting box. Both sides of the outer wall of the screw and the guide rod 2 are fitted with a wedge-shaped block for pushing the first limiting plate assembly and the second limiting plate assembly away from each other. One end of the screw rotatably passes through the mounting box and is fixedly mounted with a handwheel.

[0024] Furthermore, a control box is fixedly installed on the outer wall of the welding station, and a controller for controlling the operation of all electrical equipment is also fixedly installed inside the control box.

[0025] This invention provides an automatic welding device for circumferential seams using a hydraulic tilting mechanism. Compared with the prior art, it has the following advantages:

[0026] 1. An automatic welding equipment for circumferential seams of hydraulic cylinders with a hydraulic tilting mechanism, by setting up a lifting mechanism, can form an upward lifting support at the weld position of the two cylinder sections before welding, thereby preventing the weld position from shifting due to shaking during the rotation of the two cylinder sections and ensuring the quality of the circumferential seam welding. Moreover, in the lifting mechanism, through the joint cooperation of a deburring component and multiple contouring lifting components, the outer contour of the cylinder section can be simulated and contoured before forming support for the cylinder section. This allows the top of the deburring component and some contouring lifting components to form a contour shape that matches the cylinder section, so that the top of the lifting mechanism can form a ring-shaped wrap around the lower part of the cylinder section, forming a stable lifting support, thereby effectively preventing the two cylinder sections from shaking during rotation. Furthermore, the simulated contour shape formed by the top of the lifting mechanism can be reused when processing cylinder sections of the same batch, saving adjustment time.

[0027] 2. An automatic welding device for the circumferential seam of a hydraulic tilting mechanism cylinder, by setting a burr removal component, when the lifting component forms bottom support for the cylinder section, the burr removal component can be located directly below the welded circumferential seam. It can work with multiple contoured lifting components on both sides to form simulated support for the cylinder section. Moreover, while supporting the cylinder section, the burr removal component can use a high-speed rotating grinding wheel to grind the welded circumferential seam, thereby removing metal burrs and welding slag generated by welding, making the weld seam flat and smooth, avoiding stress concentration at the tip, and ensuring the connection strength of the weld seam.

[0028] 3. A hydraulic tilting mechanism cylinder circumferential welder, by setting a drive component, can simultaneously and quickly lock the positions of the burr removal component and the multiple contour lifting components after multiple contour lifting components and burr removal components form a contour shape that matches the outer wall of the cylinder section, thereby memorizing and locking the formed contour shape, so that it can continue to be used in the subsequent processing of the cylinder section, thus avoiding the need for repeated adjustment of the lifting mechanism, simplifying the operation steps, and improving the efficiency of automatic circumferential welder.

[0029] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the first state structure of the lifting mechanism of the present invention;

[0033] Figure 4 This is a schematic diagram of the second state structure of the lifting mechanism of the present invention;

[0034] Figure 5 This is a schematic diagram of the disassembled structure of the lifting mechanism of the present invention;

[0035] Figure 6 For the present invention Figure 5 A magnified structural diagram of part A in the diagram;

[0036] Figure 7 This is a schematic diagram of the first assembly state structure of the burr removal component, the contour lifting component, and the drive component of the present invention;

[0037] Figure 8 This is a schematic diagram of the second assembly state structure of the burr removal component, the contour lifting component, and the drive component of the present invention;

[0038] Figure 9 For the present invention Figure 8 A magnified structural diagram of part B in the diagram;

[0039] Figure 10 This is a schematic diagram of the burr removal component structure of the present invention;

[0040] Figure 11 This is a cross-sectional view of the burr removal component of the present invention;

[0041] Figure 12 For the present invention Figure 11 A magnified structural diagram of part C in the diagram;

[0042] Figure 13 This is a schematic diagram of the contour-following lifting component structure of the present invention;

[0043] Figure 14 This is a schematic diagram of the first state structure of the driving component of the present invention;

[0044] Figure 15 For the present invention Figure 14 A magnified structural diagram of part D in the diagram;

[0045] Figure 16 This is a schematic diagram of the second state structure of the driving component of the present invention;

[0046] Figure 17 For the present invention Figure 16 A magnified structural diagram of part E in the diagram;

[0047] Figure 18 This is a schematic diagram of the decomposed state structure of the driving component of the present invention.

[0048] In the diagram: 1. Welding table; 2. Slide table; 3. Chuck No. 1; 4. Bearing seat; 5. Chuck No. 2; 6. Lifting mechanism; 61. Slide; 62. Mounting box; 63. Movement clearance; 64. Side plate; 65. Cover plate; 66. Deburring assembly; 661. Base plate; 662. Transmission box No. 1; 663. Transmission box No. 2; 664. Gear plate No. 1; 665. Lifting rod No. 1; 666. Spring No. 1; 667. Drive shaft; 668. Grinding wheel; 669. Driven gear; 6610. Motor; 6611. Drive gear; 6612. Gear teeth 67. Belt; 68. Contouring lifting assembly; 69. Support column; 60. Guide block; 61. U-shaped seat; 62. Mounting slot; 63. Guide wheel; 64. Through slot; 65. Toothed plate II; 66. Lifting rod II; 677. Spring II; 68. Drive assembly; 69. Long strip plate; 60. Arc-shaped protrusion; 61. Positioning rack; 62. Guide rod I; 63. Spring III; 64. Screw; 65. Guide rod II; 66. Wedge block; 67. Handwheel; 68. Movable slot; 7. Linear module; 8. Welding torch. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] This invention provides five technical solutions: a hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams, specifically including the following embodiments:

[0051] like Figures 1-2 The first embodiment is shown: a hydraulic tilting mechanism cylinder automatic welding equipment for circumferential seams, including a welding table 1 and two slides 2 fixedly disposed on both sides of the top of the welding table 1, and further including:

[0052] A clamping fixture is installed on the top of the welding table 1 and is used to clamp the two cylinder sections to be welded. The clamping fixture includes a No. 1 chuck 3 installed on the top left side of the welding table 1 for clamping one cylinder section and driving the cylinder section to rotate, and a driven clamping unit for clamping the other cylinder section. The No. 1 chuck 3 is rotatably installed on the side wall of the welding table 1 and is driven by a motor. The speed of the motor output shaft can be controlled by programming.

[0053] The lifting mechanism 6 is slidably set outside the two slide tables 2. It is used to lift and support the weld seam of the two sections of cylinder after simulating and shaping the outline of the two sections to be welded. At the same time as circumferential welding, it grinds the burrs and slag generated at the weld seam.

[0054] Linear module 7 is fixedly mounted on the side wall of welding table 1 and is used for lateral and longitudinal linear movement and positioning. Linear module 7 is a dual-axis linear module, that is, a linear module with two moving axes, which can realize linear movement and positioning in the X and Y directions and can simultaneously control lateral and longitudinal movement. It includes linear module, slider, screw and drive device, etc., which are existing known technologies, and its structure and working principle will not be described in detail here.

[0055] The welding torch 8 is mounted on the bottom of the linear module 7 via a mounting bracket and is used to weld the circumferential seam between the two cylinder sections.

[0056] The driven clamping unit includes a support seat 4 that is simultaneously slidably sleeved on the outer walls of two slides 2. A second chuck 5 is rotatably mounted on the side wall of the support seat 4 relative to the first chuck 3 for clamping and fixing one section of the hydraulic cylinder. The support seat 4 and the slides 2 are locked in position by fastening bolts. After the position of the support seat 4 is unlocked, the distance relative to the first chuck 3 can be changed by moving the support seat 4.

[0057] like Figures 3-9The second embodiment is shown, differing from the first embodiment in that: a hydraulic tilting mechanism cylinder automatic welding device for circumferential seams, the lifting mechanism 6 includes a slide seat 61 slidably sleeved on the outer wall of two slide tables 2 and columns fixedly installed on the four corners of the top of the slide seat 61. A housing assembly is slidably sleeved on the outer wall of the four columns, and the housing assembly and columns are locked together by fastening bolts. An movable gap 63 is formed between the housing assembly and the slide seat 61. The housing assembly includes a mounting box 62, on which side plates 64 are detachably installed by bolts on both the front and rear side walls, and a cover plate 65 is detachably installed on the top of the mounting box 62. The slide seat 61 and the slide table 2 are locked in position by fastening bolts to ensure that the position of the lifting mechanism 6 is always at the weld seam position. The top of the deburring component 66 is directly below the weld seam, where it contacts the weld seam. The height of the top of the deburring component 66 can be changed by moving the mounting box 62 up or down along the outer wall of the four columns. The mounting box 62 has a deburring component 66 for grinding the weld seam located in the middle. Multiple contoured support components 67 for supporting the cylinder section to be welded are evenly arranged on both sides of the deburring component 66. Both the deburring component 66 and the multiple contoured support components 67 slide through the cover plate 65 and extend to the outside. Movable grooves 69 are provided on both sides of the inner wall of the mounting box 62. A drive component 68 is provided inside both movable grooves 69 to simultaneously lock or unlock the positions of the deburring component 66 and the multiple contoured support components 67. The drive component 68 passes through the through grooves 676 in the multiple contoured support components 67 and between the two toothed plates 664 in the deburring component 66.

[0058] like Figures 10-12A third embodiment is shown, which differs from the second embodiment in that: a hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams, the burr removal component 66 includes a base plate 661 and a first transmission box 662 and a second transmission box 663 fixedly disposed on the top two sides of the base plate 661. The base plate 661 and the first transmission box 662 are both fixedly disposed on opposite side walls for locking position with the drive component 68. A lifting rod 665 is fixedly disposed at the bottom center of the base plate 661. A spring 666 is slidably sleeved on the outer wall of the lifting rod 665 between the base plate 661 and the first transmission box 662. A drive shaft 667 is rotatably disposed between the opposite side walls of the first transmission box 662 and the second transmission box 663. A grinding wheel 668 is fixedly sleeved at the middle position of the outer wall of the drive shaft 667. A power component for driving the drive shaft 667 to rotate is also disposed inside the second transmission box 663. The power assembly includes a driven gear 669 fixedly mounted on the outer wall of the drive shaft 667 and a motor 6610 fixedly mounted on the outer wall of the second transmission box 663. The output shaft of the motor 6610 rotatably passes through the second transmission box 663 and is fixedly mounted with a drive gear 6611. A toothed belt 6612 for transmitting power is mounted on the outer walls of both the drive gear 6611 and the driven gear 669. The lifting rod 665 slides through the mounting box 62 and extends into the movable gap 63. Both the first transmission box 662 and the second transmission box 663 slide through the cover plate 65 and extend to the outside.

[0059] like Figure 13 The fourth embodiment is shown, which differs from the third embodiment in that: a hydraulic tilting mechanism cylinder circumferential welder, the contour lifting assembly 67 includes a support column 671 that slides through the cover plate 65 and a guide block 672 fixedly disposed on the side wall of the support column 671. The top of the support column 671 is provided with a lifting platform for supporting the cylinder section; the top of the cover plate 65 is evenly provided with through holes for the support column 671 to rise and fall freely, and the inner wall of the through hole is provided with a limiting groove that matches the guide block 672. The guide block 672 is slidably disposed inside the limiting groove. The lifting platform includes a U-shaped seat 673 detachably mounted on top of the support column 671. Mounting slots 674 are provided on both sides of the top of the U-shaped seat 673. Multiple guide wheels 675 are rotatably mounted inside each mounting slot 674. The tops of the guide wheels 675 protrude from the mounting slots 674, allowing them to contact the outer wall of the cylinder section. A through groove 676 is provided on the outer wall of the support column 671. Toothed plates 677 are fixedly mounted on both sides of the inner wall of the through groove 676. A lifting rod 678 is fixedly mounted at the bottom of the support column 671. A spring 679 is slidably mounted on the outer wall of the lifting rod 678, located between the support column 671 and the mounting box 62.

[0060] like Figures 14-18The fifth embodiment is shown, differing from the fourth embodiment in that: a hydraulic tilting mechanism cylinder automatic welding equipment for circumferential seams, the drive assembly 68 includes a first limiting plate assembly and a second limiting plate assembly arranged opposite each other, the first and second limiting plate assemblies having identical structures, and a push rod assembly for pushing the two away from each other is also provided between the first and second limiting plate assemblies. The first limiting plate assembly includes a long strip plate 681 with both ends slidably disposed inside two movable slots 69, the side walls of the long strip plate 681 near the second limiting plate assembly are fixedly provided with arc-shaped protrusions 682 for use with the push rod assembly, a plurality of positioning racks 683 are evenly provided on the outer wall of the long strip plate 681 away from the arc-shaped protrusions 682, and guide rods 684 are fixedly provided on both ends of the side walls of the long strip plate 681 away from the second limiting plate assembly, the outer walls of the guide rods 684 are slidably sleeved with springs 685. Each movable groove 69 has movable through holes on both sides of its inner wall. One end of each guide rod 684 is slidably disposed in one of the movable through holes. The spring 685 is located between the movable groove 69 and the long strip 681. A positioning rack 683 is correspondingly provided at the positions of the toothed plate 664 and the toothed plate 677. When the positioning rack 683 engages with the toothed plate 677 or the toothed plate 664, the positions of the burr removal component 66 and the contour lifting components 67 at multiple positions are locked. When the positioning rack 683 disengages from the toothed plate 677 or the toothed plate 664, the positions of the burr removal component 66 and the contour lifting components 67 at multiple positions are freely movable. The wedge block 688 has a sloping design on both sides of its outer wall. In the initial position, the arc-shaped protrusions 682 on the first and second limiting plate assemblies are only attached to the lower part of the sloping surface of the wedge block 688 at the corresponding position. The screw 686 and the wedge block 688 are connected by threads. The push rod assembly includes a screw 686 and a guide rod 687 rotatably mounted on the inner wall of the mounting box 62. Both sides of the outer wall of the screw 686 and the guide rod 687 are fitted with a wedge block 688 for pushing the first and second limiting plate assemblies away from each other. One end of the screw 686 rotatably passes through the mounting box 62 and is fixedly mounted with a handwheel 689. A crossbar is provided inside the annular ring of the handwheel 689. The crossbar is horizontal when the handwheel 689 is in its original state, that is, when it is not turned. At this time, the drive assembly 68 does not lock the position of the deburring assembly 66 and the contour lifting assembly 67. When the crossbar is rotated 90 degrees clockwise from the horizontal state, the drive assembly 68 locks the position of the deburring assembly 66 and the contour lifting assembly 67. A control box is fixedly installed on the outer wall of the welding table 1. The control box also contains a controller for controlling the operation of all electrical equipment.

[0061] When in use: First, adjust the distance between the No. 2 chuck 5 and the No. 1 chuck 3 according to the length of the hydraulic cylinder section of the hydraulic tilting mechanism, so as to ensure that the two cylinder sections are clamped by the No. 1 chuck 3 and the No. 2 chuck 5 respectively, and the parts to be welded at both ends can abut against each other.

[0062] When adjusting the position of the bearing seat 4, the cylinder section to be welded needs to be pre-clamped in the first chuck 3 and the second chuck 5 until the bearing seat 4 is pushed to slide along the outer wall of the slide table 2 until the ends of the two cylinder sections abut against each other. At this time, mark the position of the bearing seat 4 on the slide table 2, and at the same time lock the bearing seat 4 on the slide table 2 with the fastening bolts. Then remove the cylinder section from the first chuck 3 and the bearing seat 4. It should be noted that the outer diameters of the two cylinder sections are the same.

[0063] Next, one of the cylinder sections is placed in the middle of the top of the lifting mechanism 6. Then, the cylinder section is gently pressed down. After the top of the burr removal assembly 66 and the top of the contour lifting assembly 67 located on both sides of the burr removal assembly 66 are subjected to the pressure of the outer wall of the cylinder section, the first transmission box 662 and the second transmission box 663 in the burr removal assembly 66 move downward along the inner wall of the cover plate 65. The bottom end of the lifting rod 665 continues to move downward in the movement gap 63, and the spring 666 is gradually compressed. At the same time, the top of the guide wheel 675 is subjected to the downward pressure of the outer wall of the cylinder section. The support column 671 moves downward along the inner wall of the cover plate 65. The bottom end of the lifting rod 678 continues to move downward in the movement gap 63, and the spring 679 is gradually compressed.

[0064] While gently pressing down on the cylinder section, observe whether one end of the cylinder section is aligned with the center position of chuck 3 or chuck 5. Once one end of the cylinder section is aligned with the center position of chuck 3 or chuck 5, turn the handwheel 689 clockwise to 90 degrees. As the handwheel 689 rotates the screw 686, the wedge blocks 688 at both positions move to one side simultaneously, driven by the screw 686. The corresponding arc-shaped protrusions 682 gradually rise from the lower position to the higher position along the slope of the wedge block 688. The first limit plate assembly... The No. 2 limiting plate assembly moves away from each other simultaneously under the push of the two wedge blocks 688 until the handwheel 689 rotates ninety degrees. At this time, the positioning racks 683 at multiple positions mesh with the toothed plate 664 in the burr removal assembly 66 and the toothed plate 677 in the contour lifting assembly 67 at the corresponding positions. At this time, the positions of the burr removal assembly 66 and part of the contour lifting assembly 67, which are squeezed by the cylinder section, are fixed. The top of the part of the contour lifting assembly 67 and the burr removal assembly 66 together form an arc surface that matches the outline of the cylinder section.

[0065] Next, two sections of the cylinder to be welded are clamped in chuck 3 and chuck 5 respectively. Then, the lifting mechanism 6 is pushed to the left or right along the outer wall of the slide table 2 so that the bottom of the deburring component 66 is directly opposite the circumferential seam of the two cylinder sections. At this time, the top of the grinding wheel 668 abuts against the circumferential seam at the bottom of the two cylinder sections.

[0066] Next, the linear module 7 is started through the control box. The linear module 7 drives the welding torch 8 to move according to the preset program until the welding torch 8 reaches the circumferential seam position at the connection of the two cylinder sections. At this time, the motor has driven the first chuck 3 to rotate at a low and uniform speed. The welding torch 8 continuously welds the rotating circumferential seam. At the same time, the motor 6610 drives the driven gear 669 to rotate through the drive gear 6611 and the toothed belt 6612. As a result, the transmission shaft 667 drives the grinding wheel 668 to rotate rapidly. The burrs and welding slag generated by welding at the circumferential seam position are ground and removed by the grinding wheel 668, and the circumferential seam position presents a flat and smooth state.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams, comprising a welding table and two sliding tables fixedly disposed on both sides of the top of the welding table, characterized in that: Also includes: A clamping fixture is set on the top of the welding table and is used to clamp the two cylinder sections to be welded. The clamping fixture includes a No. 1 chuck set on the left side of the top of the welding table for clamping one cylinder section and driving the cylinder section to rotate, and a driven clamping unit for clamping the other cylinder section. The lifting mechanism is slidably set outside the two sliding tables. It is used to simulate and shape the outline of the two cylindrical sections to be welded, and then lift and support the weld seam of the two cylindrical sections. At the same time as circumferential welding, it grinds the burrs and slag generated at the weld seam. The linear module is fixedly mounted on the side wall of the welding table and is used for lateral and longitudinal linear movement and positioning. The welding torch, mounted on a bracket at the bottom of the linear module, is used to weld the circumferential seam between two cylinder sections. The lifting mechanism includes a slide seat slidably mounted on the outer walls of two slide tables and four columns fixedly mounted on the four corners of the top of the slide seat. A housing assembly is slidably mounted on the outer walls of the four columns, and the housing assembly and the columns are locked together by fastening bolts. An movable gap is formed between the housing assembly and the slide seat. The housing assembly includes a mounting box, and side plates are detachably mounted on the front and rear side walls of the mounting box by bolts. A cover plate is also detachably mounted on the top of the mounting box. The mounting box has a burr removal component for grinding the weld seam in the middle of its interior. On both sides of the burr removal component, there are also multiple contour lifting components for supporting the cylinder section to be welded. The burr removal component and the multiple contour lifting components slide through the cover plate and extend to the outside. Movable grooves are provided on both sides of the inner wall of the mounting box. The two movable grooves are provided with a drive component for locking or unlocking the position of the burr removal component and the multiple contour lifting components at the same time. The deburring assembly includes a base plate and a first transmission box and a second transmission box fixedly disposed on the top two sides of the base plate. A toothed plate is fixedly disposed on the opposite sidewalls of the first and second transmission boxes for position locking in conjunction with the drive assembly. A lifting rod is fixedly disposed at the bottom center of the base plate. A spring is slidably sleeved on the outer wall of the lifting rod between the base plate and the mounting box. A drive shaft is rotatably disposed between the opposite sidewalls of the first and second transmission boxes. A grinding wheel is fixedly sleeved at the middle position of the outer wall of the drive shaft. A power assembly for driving the drive shaft to rotate is also disposed inside the second transmission box. The contour lifting assembly includes a support column that slides through the cover plate and a guide block fixedly installed on the side wall of the support column. The top of the support column is provided with a lifting platform for supporting the cylinder section. The lifting platform includes a U-shaped seat that is detachably mounted on top of a support column. The top two sides of the U-shaped seat are provided with mounting slots, and multiple guide wheels are rotatably mounted inside each mounting slot. A through groove is provided on the outer wall of the support column, and toothed plates are fixedly provided on both sides of the inner wall of the through groove. A lifting rod is fixedly provided at the bottom end of the support column, and a spring is slidably provided on the outer wall of the lifting rod and between the support column and the mounting box. The drive assembly includes a first limiting plate assembly and a second limiting plate assembly arranged opposite to each other. The first limiting plate assembly and the second limiting plate assembly have the same structure. A push rod assembly for pushing the two components away from each other is also provided between the first limiting plate assembly and the second limiting plate assembly. The first limiting plate assembly includes a long strip plate that is slidably disposed at both ends inside two movable slots. Arc-shaped protrusions that cooperate with the push rod assembly are fixedly disposed on both sides of the side wall of the long strip plate near the second limiting plate assembly. Multiple positioning racks are evenly disposed on the outer wall of the long strip plate away from the arc-shaped protrusions. Guide rods are fixedly disposed at both ends of the side wall of the long strip plate away from the second limiting plate assembly. Springs are slidably sleeved on the outer wall of the guide rods.

2. The hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams according to claim 1, characterized in that: The driven clamping unit includes a support seat that is simultaneously slidably sleeved on the outer wall of two slides. A second chuck is rotatably mounted on the side wall of the first chuck to clamp and fix one section of the hydraulic cylinder.

3. The hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams according to claim 1, characterized in that: The power assembly includes a driven gear fixedly mounted on the outer wall of the transmission shaft and a motor fixedly mounted on the outer wall of the second transmission box. The output shaft of the motor rotates through the second transmission box and is fixedly mounted with a drive gear. The outer walls of the drive gear and the driven gear are jointly fitted with a toothed belt for transmitting power.

4. The hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams according to claim 1, characterized in that: The push rod assembly includes a screw and a guide rod 2 rotatably mounted on the inner wall of the mounting box. Both sides of the outer wall of the screw and the guide rod 2 are fitted with a wedge-shaped block for pushing the first limiting plate assembly and the second limiting plate assembly away from each other. One end of the screw rotatably passes through the mounting box and is fixedly mounted with a handwheel.

5. The hydraulic tilting mechanism oil cylinder automatic welding equipment for circumferential seams according to claim 1, characterized in that: A control box is fixedly installed on the outer wall of the welding station, and a controller for controlling the operation of all electrical equipment is also fixedly installed inside the control box.

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