Flange processing and welding equipment

Abstract

The present invention discloses a flange processing and welding device, which relates to the field of flange processing technology, and comprises a base, an outer wall of the base is rotatably sleeved with a ring body, a support is arranged on one side of the ring body, a mechanical arm is installed on the upper part of the support, a welding mechanism is arranged at one end of the mechanical arm, a longitudinal positioning mechanism is arranged on the upper part of the base, and a transverse positioning mechanism is arranged inside the base, the longitudinal positioning mechanism comprises a limit cylinder arranged at the center of the upper part of the base, the upper end of the limit cylinder is longitudinally rotated and slidably inserted with a knob, the lower end of the knob is located in the limit cylinder and connected with a first screw rod, the lower end of the first screw rod longitudinally rotates and slides through the upper part of the base and is located inside thereof and connected with a clamping gear. The flange processing and welding device can replace manual work to realize automatic welding, and before welding, by setting the longitudinal positioning mechanism and the transverse positioning mechanism, it can position steel pipes and flanges of different sizes to ensure the stability of welding.

Description

Technical Field

[0001] The invention relates to the technical field of flange processing, in particular to flange processing welding equipment. Background Art

[0002] With the rapid development of modern industry, flanges, as important components for connecting pipes, valves and other equipment, are receiving more and more attention for their processing quality and efficiency. In the flange processing process, welding is one of the key steps. Traditional flange processing and welding are usually performed manually.

[0003] The invention with Chinese patent publication number CN118635717A discloses a flange welding device, including a chassis, a supporting mechanism, a feeding mechanism and a welding mechanism; in order to ensure the welding quality when manually welding a flat-welded flange with a neck, it is best to keep the angle between the welding gun and the flange at forty-five degrees, but since the connection between the flange and the steel pipe is annular, it is easy to shake during manual welding, which will lead to a decrease in welding quality; the angle between the inclined plate and the flange in the welding mechanism of the present invention is forty-five degrees in the initial state, and by adjusting the self-locking telescopic rod and the mounting assembly, the angle between the welding wire and the flange can always be forty-five degrees, and under the action of the pressing assembly, the welding wire always abuts against the connection between the two; during welding, the feeding mechanism will drive the welding mechanism to perform uniform circular motion around the annular track to weld the connection between the steel pipe and the flange, thereby ensuring the welding strength.

[0004] Although this patent can replace manual automatic welding, it can only position flanges of a single size. If flanges of different sizes are welded, the welding equipment cannot effectively position the flanges. Therefore, it is necessary to develop a welding equipment that can position flanges of different sizes. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a flange processing and welding device, which solves the problem that traditional flange welding equipment cannot position flanges of different sizes.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a flange processing and welding equipment, including a base, the outer wall of the base is rotatably sleeved with a ring body, one side of the ring body is provided with a support, a mechanical arm is installed on the upper part of the support, a welding mechanism is provided at one end of the mechanical arm, a longitudinal positioning mechanism is provided on the upper part of the base, and a transverse positioning mechanism is provided inside the base.

[0007] The longitudinal positioning mechanism includes a limiting cylinder arranged at the center of the upper part of the base, and a knob is inserted into the upper end of the limiting cylinder for longitudinal rotation and sliding. The lower end of the knob is located in the limiting cylinder and is connected to a first screw rod. The lower end of the first screw rod longitudinally rotates and slides through the upper part of the base and is located inside thereof and is connected to a clamping gear, and the outer part of the first screw rod is located in the limiting cylinder and is screwed with a threaded sleeve through a thread. Both sides of the threaded sleeve are horizontally hinged with a baffle through a torsion spring, and both sides of the limiting cylinder are provided with a strip groove, and one end of the baffle rod away from its hinge point passes through the strip groove, and both sides of the threaded sleeve are provided with limiting protrusions at the upper position of the baffle rod, and the longitudinal positioning mechanism also includes a limiting part.

[0008] The horizontal positioning mechanism includes a second screw rod rotatably arranged at the center of the lower side of the base, and the upper end of the second screw rod is provided with a gear sleeve corresponding to the engaging gear, so that the engaging gear can be engaged in the gear sleeve when it moves downward, and the outer side of the second screw rod is screwed with a movable sleeve through a thread, and connecting rods are hinged on both sides of the movable sleeve, and a positioning cylinder is hinged on one end of the connecting rod away from the movable sleeve. Limiting grooves are provided on both sides of the limiting cylinder on the upper part of the base, and the upper end of the positioning cylinder passes through the limiting groove and is connected to the base in a horizontal sliding manner.

[0009] Preferably, a first servo motor is installed on the inner wall of the base, and the output shaft of the first servo motor is located at an outer position of the base and connected to a driving gear. A ring gear is provided at the bottom of the ring body, and the driving gear is meshed with the ring gear.

[0010] Preferably, when the baffle is in a horizontal state, the limiting protrusion just blocks the baffle, so that the baffle cannot rotate upward, and the length of the baffle is greater than the outer diameter of the steel pipe on the plug-in flange.

[0011] Preferably, the limiting portion includes a limiting plate rotatably arranged on the inner wall of the upper end of the limiting cylinder and a flange arranged on the outer wall of the lower end of the knob. The knob rotates through the upper part of the limiting plate, and the outer sleeve of the knob is provided with a spring, and the two ends of the spring are respectively connected to the lower part of the limiting plate and the upper part of the flange. When the spring is in a reset state, the engaging gear just leaves the gear sleeve.

[0012] Preferably, open grooves are provided on both sides of the positioning cylinder, and arc-shaped spring pieces are provided between the upper and lower sides of the inner part of the open grooves, the concave surface of the arc-shaped spring pieces is arranged outward, and a rubber block is arranged at the concave surface, and an adjusting block is rotatably provided on the upper end of the positioning cylinder, and the lower end of the adjusting block is located in the positioning cylinder and is connected to a third screw rod, and an extrusion sleeve is screwed on the outside of the third screw rod through a thread, and the diameter of the extrusion sleeve is larger than the spacing between the two arc-shaped spring pieces, and the outer diameter of the positioning cylinder is smaller than the inner diameter of the bolt hole on the flange.

[0013] Preferably, the outer wall of the extrusion sleeve is provided with a convex shaft, the inner wall of the positioning cylinder is provided with a guide groove matched with the convex shaft, and one end of the convex shaft is arranged in the guide groove and longitudinally slidably connected with the positioning cylinder.

[0014] Preferably, the welding mechanism includes a shell, a second servo motor is installed on one side of the shell, the output shaft of the second servo motor is located in the shell and connected to a transmission gear, the first rack and the second rack are respectively meshed on both sides of the transmission gear, one end of the first rack is connected to a welding gun, the end of the welding gun away from the first rack is connected to a welding rod, the welding rod rotates and slides through the interior of one end of the shell, one end of the second rack is connected to a rotating motor, the output shaft of the rotating motor is connected to a limiting shaft, the end of the limiting shaft away from the rotating motor rotates and slides through the interior of one end of the shell and is connected to a polishing sand ball.

[0015] Preferably, the first rack and the second rack are arranged in parallel and staggered.

[0016] Preferably, a guide block is provided on one side of the first rack and the second rack, guide grooves are provided on both sides of the inner wall of the shell, and one end of the guide block is provided in the guide groove and is slidably connected to the shell.

[0017] The present invention provides a flange processing and welding device, which has the following beneficial effects compared with the prior art:

[0018] The flange processing and welding equipment can replace manual work to realize automatic welding work, and before welding, by setting a longitudinal positioning mechanism and a transverse positioning mechanism, it can position steel pipes and flanges of different sizes to ensure the stability of welding.

[0019] The flange processing and welding equipment can automatically switch to the polishing mode after the flange is welded, and polish the welded part to make the welded part more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the longitudinal positioning mechanism and the transverse positioning mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the positioning tube of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the welding mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the welding mechanism of the present invention.

[0025] In the figure: 1, base; 101, first servo motor; 102, driving gear; 2, ring body; 21, ring gear; 3, support; 4, mechanical arm; 5, welding mechanism; 51, shell; 52, second servo motor; 53, transmission gear; 54, first rack; 55, second rack; 56, welding gun; 57, welding rod; 58, rotating motor; 59, limiting shaft; 510, polishing sand ball; 511, guide block; 512, guide groove; 6, longitudinal positioning mechanism; 61, limiting cylinder; 62, knob; 63, first A screw rod; 64, a snap-on gear; 65, a torsion spring; 66, a stop bar; 67, a limiting convex block; 68, a limiting portion; 681, a limiting plate; 682, a flange; 683, a spring; 69, a threaded sleeve; 7, a horizontal positioning mechanism; 71, a second screw rod; 72, a movable sleeve; 73, a connecting rod; 74, a limiting groove; 75, a positioning cylinder; 751, an opening groove; 752, an arc-shaped spring piece; 753, a rubber block; 754, an adjusting block; 755, a third screw rod; 756, an extrusion sleeve; 757, a cam shaft; 76, a gear sleeve. DETAILED DESCRIPTION

[0026] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5 , the present invention provides three technical solutions:

[0028] For example, see Figure 1 In an embodiment of the present invention, a flange processing and welding device includes a base 1, an outer wall of the base 1 is rotatably sleeved with a ring body 2, one side of the ring body 2 is provided with a support 3, a mechanical arm 4 is installed on the upper part of the support 3, a welding mechanism 5 is provided at one end of the mechanical arm 4, a longitudinal positioning mechanism 6 is provided on the upper part of the base 1, and a transverse positioning mechanism 7 is provided inside the base 1.

[0029] See also Figure 1 and Figure 2In the embodiment of the present invention, the longitudinal positioning mechanism 6 includes a limiting cylinder 61 arranged at the center of the upper part of the base 1, and the upper end of the limiting cylinder 61 is longitudinally rotated and slidably inserted with a knob 62, and the lower end of the knob 62 is located in the limiting cylinder 61 and is connected to a first screw rod 63, and the lower end of the first screw rod 63 longitudinally rotates and slides through the upper part of the base 1 and is located inside thereof and is connected to a clamping gear 64, and the outer part of the first screw rod 63 is located in the limiting cylinder 61 and is screwed with a threaded sleeve 69 through a thread, and both sides of the threaded sleeve 69 are horizontally hinged with a baffle 66 through a torsion spring 65, and both sides of the limiting cylinder 61 are provided with a strip groove, and one end of the baffle 66 away from its hinge point passes through the strip groove, and both sides of the threaded sleeve 69 are located at the upper position of the baffle 66. The longitudinal positioning mechanism 6 also includes a limiting portion 68.

[0030] See also Figure 1 and Figure 2 In the embodiment of the present invention, the horizontal positioning mechanism 7 includes a second screw rod 71 rotatably arranged at the center of the lower side of the base 1, and the upper end of the second screw rod 71 is provided with a gear sleeve 76 corresponding to the clamping gear 64, so that the clamping gear 64 can be clamped into the gear sleeve 76 when it moves downward, and the outer side of the second screw rod 71 is screwed with a movable sleeve 72 through a thread, and both sides of the movable sleeve 72 are hinged with connecting rods 73, and one end of the connecting rod 73 away from the movable sleeve 72 is hinged with a positioning cylinder 75, and the upper part of the base 1 is located on both sides of the limiting cylinder 61. Limiting grooves 74 are provided, and the upper end of the positioning cylinder 75 passes through the limiting grooves 74 and is horizontally slidably connected to the base 1.

[0031] See also Figure 2 In the embodiment of the present invention, the limiting portion 68 includes a limiting plate 681 rotatably arranged on the inner wall of the upper end of the limiting cylinder 61 and a flange 682 arranged on the outer wall of the lower end of the knob 62. The knob 62 rotates through the upper part of the limiting plate 681, and the outer sleeve of the knob 62 is provided with a spring 683. The two ends of the spring 683 are respectively connected to the lower part of the limiting plate 681 and the upper part of the flange 682. When the spring 683 is in the reset state, the clamping gear 64 just leaves the gear sleeve 76.

[0032] In the above scheme: the knob 62 is pressed downward, and under the elasticity of the spring 683, the knob 62 drives the first screw rod 63 to move downward, and the first screw rod 63 drives the engaging gear 64 to move downward, so that the engaging gear 64 meshes and engages in the gear sleeve 76, and then the knob 62 is turned, the knob 62 drives the first screw rod 63 to rotate, and the first screw rod 63 will cause the engaging gear 64 to drive the second screw rod 71 to rotate, and the second screw rod 71 will drive the moving sleeve 72 to move longitudinally, and the moving sleeve 72 causes the connecting rod 73 to drive the positioning cylinder 75 to move, and the spacing between the two positioning cylinders 75 is adjusted so that the bolt holes on the flange can be just inserted into the two positioning cylinders 75;

[0033] After the flange is positioned, the knob 62 is released, and the spring 683 resets the knob 62, so that the engaging gear 64 is disengaged from the gear sleeve 76. In this way, when the first screw 63 rotates, it will not affect the second screw 71. The steel pipe is sleeved onto the limiting cylinder 61. During the sleeve insertion process, the steel pipe will press the stop bar 66 downward. Under the elasticity of the torsion spring 65, the stop bar 66 will rotate downward, so that the steel pipe can be smoothly sleeved onto the limiting cylinder 61 and plugged into the flange. After the plugging is completed, the steel pipe is The upper end will be lower than the position of the baffle 66, and the baffle 66 will not be subjected to pressure. The torsion spring 65 will reset the baffle 66 to a horizontal state. At this time, the knob 62 is turned to drive the first screw 63 to rotate, and the first screw 63 drives the threaded sleeve 69 to move downward, thereby driving the baffle 66 to move downward, so that the baffle 66 presses the upper end of the steel pipe. Under the obstruction of the limiting protrusion 67, the baffle 66 can be kept in horizontal rotation and will not rotate upward, thereby positioning the steel pipe.

[0034] For further information, see Figure 1 In the embodiment of the present invention, a first servo motor 101 is installed on the inner wall of the base 1, and the output shaft of the first servo motor 101 is located at the outer position of the base 1 and is connected to a driving gear 102. A ring gear 21 is provided at the bottom of the ring body 2, and the driving gear 102 is meshed with the ring gear 21. The first servo motor 101 drives the driving gear 102 to rotate. Since the driving gear 102 is meshed with the ring gear 21 at the bottom of the ring body 2, the driving gear 102 drives the ring body 2 to rotate when it rotates, and the ring body 2 drives the mechanical arm 4 on the support 3 to rotate around the flange, thereby completing the welding work of the flange.

[0035] For further information, see Figure 2 In the embodiment of the present invention, when the baffle 66 is in a horizontal state, the limiting protrusion 67 just blocks the baffle 66, so that the baffle 66 cannot rotate upward, and the length of the baffle 66 is greater than the outer diameter of the steel pipe on the plug-in flange, so that when the baffle 66 moves downward, it can press the upper end of the steel pipe, thereby positioning the steel pipe.

[0036] The second embodiment is different from the first embodiment in that:

[0037] See also Figure 2 and Figure 3In the embodiment of the present invention, both sides of the positioning cylinder 75 are provided with open grooves 751, and arc-shaped spring pieces 752 are provided between the upper and lower sides of the inner part of the opening grooves 751. The concave surface of the arc-shaped spring piece 752 is arranged outward, and a rubber block 753 is arranged at the concave surface. An adjusting block 754 is rotatably provided at the upper end of the positioning cylinder 75. The lower end of the adjusting block 754 is located in the positioning cylinder 75 and is connected to a third screw rod 755. The outer part of the third screw rod 755 is screwed with an extrusion sleeve 756 through a thread. The diameter of the extrusion sleeve 756 is larger than the distance between the two arc-shaped spring pieces 752, and the outer diameter of the positioning cylinder 75 is smaller than the inner diameter of the bolt hole on the flange.

[0038] In the above scheme: rotating the adjustment block 754 drives the third screw 755 to rotate, and the third screw 755 drives the extrusion sleeve 756 to move longitudinally, so that it moves downward, and the extrusion sleeve 756 will squeeze the arc surfaces of the two arc-shaped spring pieces 752 respectively, so that the arc-shaped spring pieces 752 drive the rubber block 753 to move outward, and let one side of the rubber block 753 press against the inner side of the bolt hole on the flange, so that the flange is not easy to shake and shift after positioning.

[0039] For further information, see Figure 3 In the embodiment of the present invention, the outer wall of the extrusion sleeve 756 is provided with a convex shaft 757, and the inner wall of the positioning cylinder 75 is provided with a guide groove adapted to the convex shaft 757. One end of the convex shaft 757 is arranged in the guide groove and is longitudinally slidably connected with the positioning cylinder 75. When the extrusion sleeve 756 moves longitudinally, the convex shaft 757 will slide in the guide groove, thereby playing a role of limiting and guiding the extrusion sleeve 756.

[0040] Embodiment 3 is different from Embodiment 1 in that:

[0041] See also Figure 1 and Figure 4-Figure 5 In the embodiment of the present invention, the welding mechanism 5 includes a shell 51, a second servo motor 52 is installed on one side of the shell 51, the output shaft of the second servo motor 52 is located in the shell 51 and is connected to a transmission gear 53, and the first rack 54 and the second rack 55 are respectively meshed on both sides of the transmission gear 53, one end of the first rack 54 is connected to a welding gun 56, and the end of the welding gun 56 away from the first rack 54 is connected to a welding rod 57, the welding rod 57 rotates and slides through the interior of one end of the shell 51, one end of the second rack 55 is connected to a rotating motor 58, the output shaft of the rotating motor 58 is connected to a limiting shaft 59, the end of the limiting shaft 59 away from the rotating motor 58 rotates and slides through the interior of one end of the shell 51 and is connected to a polishing sand ball 510.

[0042] In the above scheme: after the steel pipe and the flange are positioned, the second servo motor 52 drives the transmission gear 53 to rotate, and the transmission gear 53 drives the first rack 54 and the second rack 55 meshing therewith to move respectively. During welding, the first rack 54 is moved toward the outside of the shell 51, and the second rack 55 is moved toward the inside of the shell 51, so that the welding rod 57 is extended, and the welding rod 57 is aligned with the welding part by the mechanical arm 4 for welding. After welding is completed, the second servo motor 52 drives the transmission gear 53 to rotate again, and the transmission gear 53 is rotated in the opposite direction, so that the welding rod 57 moves toward the inside of the shell 51, and the limiting shaft 59 is extended, and then the mechanical arm 4 makes the polishing sand ball 510 contact with the welded part. After contact, the rotating motor 58 drives the limiting shaft 59 to rotate, and the limiting shaft 59 drives the polishing sand ball 510 to rotate, and the polishing sand ball 510 polishes the welded part to make the welded part more beautiful.

[0043] For further information, see Figure 4-Figure 5 In the embodiment of the present invention, the first rack 54 and the second rack 55 are staggered and arranged in parallel, and the transmission gear 53 drives the first rack 54 and the second rack 55 meshing therewith to move respectively, so that the first rack 54 and the second rack 55 can extend outward and retract inward, thereby realizing the switching mode between polishing and welding.

[0044] For further information, see Figure 4-Figure 5 In the embodiment of the present invention, a guide block 511 is provided on one side of the first rack 54 and the second rack 55, and a guide groove 512 is provided on both sides of the inner wall of the shell 51. One end of the guide block 511 is provided in the guide groove 512 and is slidably connected with the shell 51. When the first rack 54 and the second rack 55 move, the guide block 511 will slide in the guide groove 512, thereby playing a role of limiting and guiding the first rack 54 and the second rack 55.

[0045] Working principle: Press the knob 62 downward, and under the elasticity of the spring 683, the knob 62 drives the first screw rod 63 to move downward, and the first screw rod 63 drives the engaging gear 64 to move downward, so that the engaging gear 64 meshes and engages in the gear sleeve 76, and then rotate the knob 62, the knob 62 drives the first screw rod 63 to rotate, the first screw rod 63 will make the engaging gear 64 drive the second screw rod 71 to rotate, and the second screw rod 71 will drive the moving sleeve 72 to move longitudinally, and the moving sleeve 72 makes the connecting rod 73 drive the positioning cylinder 75 to move, and adjust the distance between the two positioning cylinders 75 so that the bolt holes on the flange can be just inserted into the two positioning cylinders 75;

[0046] Then, the adjusting block 754 is rotated to drive the third screw rod 755 to rotate, and the third screw rod 755 drives the extrusion sleeve 756 to move longitudinally, so that it moves downward, and the extrusion sleeve 756 will respectively squeeze the arc surfaces of the two arc-shaped spring pieces 752, so that the arc-shaped spring pieces 752 drive the rubber block 753 to move outward, so that one side of the rubber block 753 is against the inner side of the bolt hole on the flange, so that the flange is not easy to shake and shift after being positioned;

[0047] After the flange is positioned, the knob 62 is released, and the spring 683 resets the knob 62, so that the engaging gear 64 is disengaged from the gear sleeve 76. In this way, when the first screw 63 rotates, it will not affect the second screw 71. The steel pipe is sleeved onto the limiting cylinder 61. During the sleeve insertion process, the steel pipe will press the stop bar 66 downward. Under the elasticity of the torsion spring 65, the stop bar 66 will rotate downward, so that the steel pipe can be smoothly sleeved onto the limiting cylinder 61 and plugged into the flange. After the plugging is completed, the steel pipe is The upper end will be lower than the position of the stop bar 66, and the stop bar 66 will not be subjected to pressure. The torsion spring 65 will reset the stop bar 66 to a horizontal state. At this time, the knob 62 is turned to drive the first screw 63 to rotate, and the first screw 63 drives the threaded sleeve 69 to move downward, thereby driving the stop bar 66 to move downward, so that the stop bar 66 presses the upper end of the steel pipe. Under the obstruction of the limiting protrusion 67, the stop bar 66 can be kept in horizontal rotation and will not rotate upward, thereby playing a role in positioning the steel pipe.

[0048] After the steel pipe and the flange are positioned, the second servo motor 52 drives the transmission gear 53 to rotate, and the transmission gear 53 drives the first rack 54 and the second rack 55 meshing therewith to move respectively. During welding, the first rack 54 moves toward the outside of the shell 51, and the second rack 55 moves toward the inside of the shell 51, so that the welding rod 57 is extended, and the welding rod 57 is aligned with the welding part through the mechanical arm 4 for welding, and the first servo motor 101 drives the driving gear 102 to rotate. Since the driving gear 102 is meshed with the ring gear 21 at the bottom of the ring body 2, the driving gear 102 drives the ring body 2 to rotate when it rotates, and the ring body 2 drives the mechanical arm 4 on the support 3 to rotate around the flange, thereby completing the welding work of the flange;

[0049] After welding is completed, the second servo motor 52 drives the transmission gear 53 to rotate again, and the transmission gear 53 rotates in the opposite direction, so that the welding rod 57 moves toward the inside of the shell 51, and the limiting shaft 59 will extend. Then the robotic arm 4 makes the polishing sand ball 510 contact the welded part. After contact, the rotating motor 58 drives the limiting shaft 59 to rotate, and the limiting shaft 59 drives the polishing sand ball 510 to rotate. The polishing sand ball 510 polishes the welded part to make the welded part more beautiful.

[0050] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A flange processing and welding device, comprising a base (1), characterized in that: The outer wall of the base (1) is rotatably sleeved with a ring body (2), a support (3) is provided on one side of the ring body (2), a mechanical arm (4) is mounted on the upper part of the support (3), a welding mechanism (5) is provided at one end of the mechanical arm (4), a longitudinal positioning mechanism (6) is provided on the upper part of the base (1), and a transverse positioning mechanism (7) is provided inside the base (1); The longitudinal positioning mechanism (6) comprises a limiting cylinder (61) arranged at the center of the upper part of the base (1); the upper end of the limiting cylinder (61) is longitudinally rotated and slidably inserted with a knob (62); the lower end of the knob (62) is located in the limiting cylinder (61) and is connected to a first screw rod (63); the lower end of the first screw rod (63) is longitudinally rotated and slidably passed through the upper part of the base (1) and is located inside thereof and is connected to a clamping gear (64); and the outer part of the first screw rod (63) is located in the limiting cylinder A threaded sleeve (69) is screwed in the inner portion (61) through a thread, and a stop bar (66) is horizontally hinged on both sides of the threaded sleeve (69) through a torsion spring (65). Both sides of the limiting cylinder (61) are provided with a strip groove, and one end of the stop bar (66) away from its hinge point passes through the strip groove. Both sides of the threaded sleeve (69) are provided with a limit convex block (67) at an upper position of the stop bar (66), and the longitudinal positioning mechanism (6) also includes a limit portion (68); The transverse positioning mechanism (7) comprises a second screw rod (71) rotatably arranged at the center of the lower side of the base (1); a gear sleeve (76) corresponding to the engaging gear (64) is arranged at the upper end of the second screw rod (71), so that the engaging gear (64) can be engaged in the gear sleeve (76) when it moves downward; a movable sleeve (72) is screwed to the outer portion of the second screw rod (71) via a thread; connecting rods (73) are hingedly connected to both sides of the movable sleeve (72); a positioning cylinder (75) is hingedly connected to one end of the connecting rod (73) away from the movable sleeve (72); limiting grooves (74) are arranged at both sides of the limiting cylinder (61) on the upper part of the base (1); the upper end of the positioning cylinder (75) passes through the limiting grooves (74) and is slidably connected to the base (1) in a transverse direction.

2. The flange processing and welding equipment according to claim 1, characterized in that: A first servo motor (101) is installed on the inner side wall of the base (1); an output shaft of the first servo motor (101) is located at an outer position of the base (1) and is connected to a driving gear (102); a ring gear (21) is provided at the bottom of the ring body (2); and the driving gear (102) is meshed with the ring gear (21).

3. The flange processing and welding equipment according to claim 1, characterized in that: When the blocking bar (66) is in a horizontal state, the limiting protrusion (67) just blocks the blocking bar (66) so that the blocking bar (66) cannot rotate upward, and the length of the blocking bar (66) is greater than the outer diameter of the steel pipe on the flange.

4. The flange processing and welding equipment according to claim 1, characterized in that: The limiting portion (68) comprises a limiting plate (681) rotatably arranged on the inner wall of the upper end of the limiting cylinder (61) and a flange (682) arranged on the outer wall of the lower end of the knob (62). The knob (62) rotates through the upper part of the limiting plate (681), and a spring (683) is sleeved on the outer part of the knob (62). The two ends of the spring (683) are respectively connected to the lower part of the limiting plate (681) and the upper part of the flange (682). When the spring (683) is in a reset state, the engaging gear (64) just leaves the gear sleeve (76).

5. The flange processing and welding equipment according to claim 1, characterized in that: Both sides of the positioning cylinder (75) are provided with open grooves (751), an arc-shaped spring piece (752) is provided between the upper and lower sides of the inner part of the opening groove (751), the concave surface of the arc-shaped spring piece (752) is arranged outward, and a rubber block (753) is arranged at the concave surface, an adjustment block (754) is rotatably provided at the upper end of the positioning cylinder (75), the lower end of the adjustment block (754) is located in the positioning cylinder (75) and is connected to a third screw rod (755), an extrusion sleeve (756) is screwed to the outside of the third screw rod (755) through a thread, the diameter of the extrusion sleeve (756) is larger than the distance between the two arc-shaped spring pieces (752), and the outer diameter of the positioning cylinder (75) is smaller than the inner diameter of the bolt hole on the flange.

6. The flange processing and welding equipment according to claim 5, characterized in that: The outer wall of the extrusion sleeve (756) is provided with a convex shaft (757), the inner wall of the positioning cylinder (75) is provided with a guide groove matched with the convex shaft (757), and one end of the convex shaft (757) is arranged in the guide groove and is longitudinally slidably connected to the positioning cylinder (75).

7. The flange processing and welding equipment according to claim 1, characterized in that: The welding mechanism (5) comprises a housing (51), a second servo motor (52) is mounted on one side of the housing (51), an output shaft of the second servo motor (52) is located in the housing (51) and is connected to a transmission gear (53), a first rack (54) and a second rack (55) are respectively meshed on two sides of the transmission gear (53), one end of the first rack (54) is connected to a welding gun (56), an end of the welding gun (56) away from the first rack (54) is connected to a welding rod (57), the welding rod (57) rotates and slides through the interior of one end of the housing (51), one end of the second rack (55) is connected to a rotating motor (58), an output shaft of the rotating motor (58) is connected to a limiting shaft (59), an end of the limiting shaft (59) away from the rotating motor (58) rotates and slides through the interior of one end of the housing (51) and is connected to a polishing sand ball (510).

8. The flange processing and welding equipment according to claim 7, characterized in that: The first rack (54) and the second rack (55) are arranged in parallel and staggered manner.

9. The flange processing and welding equipment according to claim 7, characterized in that: A guide block (511) is provided on one side of the first rack (54) and the second rack (55), guide grooves (512) are provided on both sides of the inner wall of the shell (51), and one end of the guide block (511) is arranged in the guide groove (512) and is slidably connected to the shell (51).

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