An automatic rotary welding device for pipelines

Abstract

The invention provides an automatic rotary welding device for pipelines, which relates to the field of building pipeline welding, and comprises: by arranging a transmission base and a grinding head, the welding part of the pipeline can be ground; by moving the grinding head on the top of the transmission base to between the pipelines, and then starting a transmission motor, the transmission motor drives the grinding head to rotate through a transmission column, so as to grind the welding part of the pipeline, thereby ensuring the grinding quality of the welding equipment, reducing the influence of foreign matter on the pipeline welding, and solving the problem that the welding part of the pipeline is usually ground before welding, but the commonly used welding equipment usually does not have a good grinding mechanism, resulting in rust on the pipeline welding part and the like, which affects the welding of the welding equipment.

Description

Technical Field

[0001] The invention relates to the technical field of building pipeline welding, and in particular to an automatic rotary welding device for pipelines. Background Art

[0002] In the field of building decoration, automated spin welding equipment for pipes also plays an important role, especially in large-scale construction projects, commercial buildings, residential areas and other occasions where a large number of pipes need to be installed.

[0003] When welding building pipes, some pipes may be in a humid, poorly ventilated or open-air environment for a long time, which makes the welded joints of these pipes very susceptible to negative effects of environmental factors. This effect is manifested in the adhesion of various debris, such as dust, sand, etc., and even rust. Therefore, the welded joints of the pipes are usually polished before welding. However, commonly used welding equipment usually does not have a good polishing mechanism, which causes rust at the pipe welds, affecting the welding of the welding equipment and reducing the welding quality. Summary of the invention

[0004] The present invention application discloses an automated rotary welding device for pipelines, so as to solve the problem raised in the above-mentioned background technology that the welding parts of pipelines are usually polished before welding, but the commonly used welding equipment usually does not have a good polishing mechanism, which leads to rust at the welding parts of pipelines and affects the welding of welding equipment.

[0005] In a first aspect, the present disclosure provides the purpose and efficacy of an automated rotary welding device for a pipeline, which specifically includes: a welding base, which is shaped like a rectangular seat structure, and has two sets of welding slides symmetrically slidably arranged on the top of the welding base; a matching side seat is fixedly installed in the middle of one side of the welding base; a mounting frame is fixedly installed at the front end of the top of the matching side seat; the welding base also includes: a welding side seat, which is shaped like a rectangular seat structure, and is fixedly installed in the middle of the other side of the welding base; a welding pillar, which is shaped like a rectangular pillar structure, and is fixedly installed on the top of the welding side seat; a welding cylinder, which is installed on the top of the welding pillar; a welding seat, which is shaped like a round head structure, and is fixedly installed on one end of the piston rod of the welding cylinder; a welding head, which is fixedly installed on one side of the welding seat.

[0006] As a further solution of the present invention, the welding base also includes: an adjusting screw, which is rotatably arranged in the middle of the top of the welding base; an adjusting motor A, which is installed in the middle of one end of the welding base; a fixed side frame A, the number of the fixed side frames A is set to five, and the fixed side frames A are symmetrically fixed on both sides of the welding base.

[0007] As a further solution of the present invention, the welding slide also includes: an adjustment joint, which is fixedly installed in the middle of the bottom of the welding slide; a threaded connection between the adjustment joint and the adjustment screw; an adjustment motor B, which is fixedly installed on one side of the top of the welding slide; an adjustment side seat, which has a circular seat structure design and is rotatably arranged on one side of the welding slide.

[0008] As a further solution of the present invention, the welding slide also includes: a fixed frame A, the number of the fixed frames A is set to four, and the fixed frames A are installed and fixed in the middle of the adjustment side seat in a ring array; a fixed cylinder, the fixed cylinder is installed and fixed in the middle of the fixed frame A; a fixed slider, the fixed slider is installed and fixed on one end of the piston rod of the fixed cylinder; a transmission ring gear, the transmission ring gear is fixed on one side of the adjustment side seat; the transmission ring gear is connected to the rotating shaft of the adjustment motor B through a gear transmission.

[0009] As a further solution of the present invention, the mating side seat also includes: a fixed side frame B, which is fixedly arranged on one side of the bottom of the mating side seat; a limiting top seat, the number of the limiting top seats is set to two, and the limiting top seats are symmetrically fixed on both sides of the top of the mating side seat; a transmission cylinder, which is installed and fixed in the middle of the top of the mating side seat; a transmission base, which is designed in an L-shaped seat structure, and the transmission base is slidably arranged between the two limiting top seats; a fixed frame B, which is installed and fixed on the top of the transmission base; a connecting side frame, the number of the connecting side frames is set to two, and the connecting side frames are symmetrically and integrally arranged on both sides of the fixed frame B.

[0010] As a further scheme of the present invention, the mating side seat also includes: a mating cylinder, which is installed and fixed in the middle of the connecting side frame; a transmission motor, which is installed in the middle of the fixed frame B; a transmission frame, which is slidably arranged on the top of the transmission base; a transmission connection between one side of the transmission frame and one end of the piston rod of the mating cylinder; a transmission column, which is shaped like a circular column structure, and the rear end of the transmission column is designed in a hexagonal structure, and the rear end of the transmission column is slidably connected to the transmission shaft of the transmission motor; a transmission joint A, which is shaped like a circular head structure, and a transmission tooth is provided on one side of the transmission joint A, and the transmission joint A is fixedly arranged at the front end of the transmission column.

[0011] As a further solution of the present invention, the mating side seat also includes: an installation groove, which is shaped like a rectangular groove structure and is opened at the top of one end of the transmission base; a connecting head, which is installed and fixed at one end of the bottom of the transmission base; a transmission connection between the connecting head and one end of the piston rod of the transmission cylinder; a detection shell, which is shaped like a rectangular shell structure and is installed and fixed at the bottom of the installation groove; a detection slider, which is shaped like a rectangular block structure and is slidably set inside the detection shell; a detection bracket, which is installed and fixed at the bottom of the detection shell; a proximity switch, which is installed inside the detection shell.

[0012] As a further solution of the present invention, the mounting frame also includes: a grinding head, which is rotatably arranged at the front end of the mounting frame; a transmission joint B, which is shaped like a circular head structure and is fixedly arranged at the rear end of the grinding head; a transmission tooth is provided on one side of the transmission joint B, and the transmission teeth of the transmission joint A are engaged with the transmission teeth of the transmission joint B; a fixed side head, the number of the fixed side heads is set to two, and the fixed side heads are symmetrically and integrally arranged on both sides of the mounting frame; the fixed side head and the transmission base are fixedly connected by fixing screws.

[0013] The automatic rotary welding equipment for pipelines provided by the present invention has the following beneficial effects:

[0014] Through the setting of the transmission base and the grinding head, the welding part of the pipeline can be polished. By moving the grinding head on the top of the transmission base to between the pipelines, and then starting the transmission motor, the transmission motor will drive the grinding head to rotate through the transmission column, so as to polish the welding part of the pipeline, thereby ensuring the grinding quality of the welding equipment and reducing the influence of foreign matter on pipeline welding, such as rust, oxide scale, dust and other impurities. Through such a meticulous and comprehensive grinding process, the surface of the pipeline welding part can be polished very flat and smooth, thus creating extremely ideal conditions for subsequent welding work, effectively ensuring the grinding quality of the welding equipment, and greatly reducing the many adverse effects that foreign matter may have on pipeline welding.

[0015] The equipment of the mounting frame and the detection shell can meet different grinding needs and ensure the grinding stability of the grinding head. The mounting frame can be disassembled and replaced with a mounting frame of a grinding head of other specifications for installation. When the mounting frame is installed, the bottom of the mounting frame will touch the detection slider by inserting the mounting frame into the mounting slot, and the bottom of the detection slider will touch the proximity switch. The proximity switch will send a signal to the external control device, and the external control device can start the matching cylinder to drive the transmission joint A and the transmission joint B to engage with each other. At this time, it means that the installation position of the mounting frame is accurate, so that the transmission motor can drive the grinding head to grind through the engagement between the transmission joint A and the transmission joint B, ensuring that the installation of the mounting frame will not be used due to deviation, thereby improving the grinding quality of the grinding head on the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0017] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 It is a schematic diagram of the overall axial stereoscopic structure of the automated rotary welding equipment for pipelines according to an embodiment of the present invention.

[0020] Figure 2 It is a schematic structural diagram of a welding base of an automated rotary welding device for pipelines according to an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the welding slide structure of the automatic rotary welding equipment for pipelines in an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the adjustment side seat structure of the automatic rotary welding equipment for pipelines in an embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the matching side seat structure of the automatic rotary welding equipment for pipelines in an embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the transmission base structure of the automatic rotary welding equipment for pipelines in an embodiment of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of a mounting frame of an automated rotary welding device for pipelines according to an embodiment of the present invention.

[0026] Figure 8It is a schematic diagram of the disassembly structure of the detection shell of the automatic rotary welding equipment for pipelines in an embodiment of the present invention.

[0027] Reference numerals list

[0028] 1. Welding base; 101. Welding side seat; 102. Welding pillar; 103. Welding cylinder; 104. Welding seat; 105. Welding head; 106. Adjusting screw; 107. Adjusting motor A; 108. Fixing side frame A; 2. Welding slide seat; 201. Adjusting joint; 202. Adjusting motor B; 203. Adjusting side seat; 204. Fixing frame A; 205. Fixing cylinder; 206. Fixing slide block; 207. Transmission gear ring; 3. Matching side seat; 301. Fixing side frame B; 302 , limit top seat; 303, transmission cylinder; 304, transmission base; 305, fixed frame B; 306, connecting side frame; 307, matching cylinder; 308, transmission motor; 309, transmission frame; 310, transmission column; 311, transmission joint A; 312, installation groove; 313, connector; 314, detection shell; 315, detection slider; 316, detection bracket; 317, proximity switch; 4, mounting frame; 401, grinding head; 402, transmission joint B; 403, fixed side head. DETAILED DESCRIPTION

[0029] 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.

[0030] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meanings as commonly understood by those skilled in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless the embodiments of the present invention clearly define such meanings.

[0031] The "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "One", "one" or "the" and similar words do not indicate quantity limitation, but indicate the existence of at least one. Similarly, "including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. In the following description, spatial and directional terms such as "upper", "lower", "front", "back", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present invention, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the figures, and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connect", "couple", "fix" and "attach" may refer to the direct connection between two elements or structures without other elements or structures, or may refer to the indirect connection between two elements or structures through an intermediate element or structure, unless otherwise explicitly stated herein.

[0032] As attached Figure 1 To Attachment Figure 8 As shown:

[0033] Embodiment 1: The present invention proposes an automated rotary welding device for pipelines, comprising: a welding base 1, the welding base 1 is shaped like a rectangular seat structure design, and the top of the welding base 1 is symmetrically slidably provided with two sets of welding slide seats 2; a matching side seat 3 is fixedly installed in the middle of one side of the welding base 1; a mounting frame 4 is fixedly installed at the front end of the top of the matching side seat 3; the welding base 1 also includes: a welding side seat 101, the welding side seat 101 is shaped like a rectangular seat structure design, and the welding side seat 101 is fixedly installed in the middle of the other side of the welding base 1; a welding pillar 102, the welding pillar 102 is shaped like a rectangular pillar structure design, and the welding pillar 102 is fixedly installed at the welding side The top of the base 101; the welding cylinder 103, the welding cylinder 103 is installed on the top of the welding pillar 102; the welding base 104, the welding base 104 is shaped like a round head structure design, and the welding base 104 is fixedly installed on one end of the piston rod of the welding cylinder 103; the welding head 105, the welding head 105 is fixedly installed on one side of the welding base 104; the adjusting screw 106, the adjusting screw 106 is rotatably set in the middle of the top of the welding base 1; the adjusting motor A107, the adjusting motor A107 is installed in the middle of one end of the welding base 1; the fixed side frame A108, the number of the fixed side frames A108 is set to five, and the fixed side frames A108 are symmetrically fixed on both sides of the welding base 1.

[0034] Among them, the welding slide 2 also includes: an adjustment joint 201, which is fixedly installed in the middle of the bottom of the welding slide 2; a threaded connection between the adjustment joint 201 and the adjustment screw 106; an adjustment motor B202, which is fixedly installed on one side of the top of the welding slide 2; an adjustment side seat 203, which is in the shape of a circular seat structure design, and the adjustment side seat 203 is rotatably set on one side of the welding slide 2; a fixed frame A204, the number of fixed frames A204 is set to four, and the fixed frames A204 are installed and fixedly installed in the middle of the adjustment side seat 203 in a ring array; a fixed cylinder 205, which is fixedly installed in the middle of the fixed frame A204; a fixed slider 206, which is fixedly installed on one end of the piston rod of the fixed cylinder 205; a transmission ring gear 207, which is fixedly installed on one side of the adjustment side seat 203; the transmission ring gear 207 and the rotating shaft of the adjustment motor B202 are connected by gear transmission.

[0035] Among them, the matching side seat 3 also includes: a fixed side frame B301, the fixed side frame B301 is fixedly set on one side of the bottom of the matching side seat 3; a limiting top seat 302, the number of the limiting top seats 302 is set to two, and the limiting top seats 302 are symmetrically fixed on both sides of the top of the matching side seat 3; a transmission cylinder 303, the transmission cylinder 303 is installed and fixed in the middle of the top of the matching side seat 3; a transmission base 304, the shape of the transmission base 304 is an L-shaped seat structure design, and the transmission base 304 is slidably set between the two limiting top seats 302; a fixed frame B305, the fixed frame B305 is installed and fixed The connecting side frame 306 is fixedly arranged on the top of the transmission base 304; the connecting side frame 306 is set to two in number, and the connecting side frame 306 is symmetrically arranged on both sides of the fixed frame B305; the matching cylinder 307 is installed and fixed in the middle of the connecting side frame 306; the transmission motor 308 is installed in the middle of the fixed frame B305; the transmission frame 309 is slidably arranged on the top of the transmission base 304; one side of the transmission frame 309 is connected to one end of the piston rod of the matching cylinder 307; the transmission column 310, the transmission column 310 The shape of the transmission column 310 is a circular column structure design, and the rear end of the transmission column 310 is a hexagonal structure design, and the rear end of the transmission column 310 is slidably connected with the transmission shaft of the transmission motor 308; the transmission joint A311, the shape of the transmission joint A311 is a circular head structure design, and a transmission tooth is opened on one side of the transmission joint A311, and the transmission joint A311 is fixedly set at the front end of the transmission column 310; the installation groove 312, the shape of the installation groove 312 is a rectangular groove structure design, and the installation groove 312 is opened at the top of one end of the transmission base 304; the connector 313, the connector 313 is installed and fixedly set on the transmission One end of the bottom of the movable base 304; a connecting head 313 is transmission-connected to one end of the piston rod of the transmission cylinder 303; a detection shell 314, the detection shell 314 is shaped like a rectangular shell structure, and the detection shell 314 is installed and fixed at the bottom of the installation groove 312; a detection slider 315, the detection slider 315 is shaped like a rectangular block structure, and the detection slider 315 is slidably set inside the detection shell 314; a detection bracket 316, the detection bracket 316 is installed and fixed at the bottom of the detection shell 314; a proximity switch 317, the proximity switch 317 is installed inside the detection shell 314.

[0036] Among them, the mounting frame 4 also includes: a grinding head 401, which is rotatably set at the front end of the mounting frame 4; a transmission joint B402, which is shaped like a round head structure design, and the transmission joint B402 is fixedly set at the rear end of the grinding head 401; a transmission tooth is provided on one side of the transmission joint B402, and the transmission teeth of the transmission joint A311 are engaged with the transmission teeth of the transmission joint B402; a fixed side head 403, the number of the fixed side heads 403 is set to two, and the fixed side heads 403 are symmetrically and integrally set on both sides of the mounting frame 4; the fixed side head 403 is fixedly connected to the transmission base 304 by fixing screws.

[0037] Specific usage and function of this embodiment: When the welding equipment is used, the welding equipment is placed in a suitable position, and then the pipe is placed in the middle of the welding slide 2, and then the fixed cylinder 205 is started. The fixed cylinder 205 clamps the pipe through the fixed slider 206, so that the fixed slider 206 fixes the pipe, and then the adjustment motor A107 is started. The adjustment motor A107 drives the adjustment screw 106 to rotate, and the adjustment screw 106 drives the welding slide 2 to move through the adjustment joint 201, so that the welding slide 2 can drive the pipe to move, so that the pipes are in a suitable position, and then the welding head 105 is started to weld the pipe, and then the adjustment motor B202 is started. The adjustment motor B202 drives the adjustment side seat 203 to rotate through the gear, and the adjustment side seat 203 drives the pipe to rotate, so that the welding of the pipe is completed.

[0038] When the pipeline needs to be polished, the welding slide 2 drives the pipeline to move so that the pipeline is in a suitable polishing position. At this time, by starting the transmission cylinder 303, the transmission cylinder 303 will drive the transmission base 304 to move, and the polishing head 401 on the top of the transmission base 304 will move between the pipelines. Then, by starting the transmission motor 308, the transmission motor 308 will drive the polishing head 401 to rotate through the transmission column 310, so as to polish the welding part of the pipeline.

[0039] When it is necessary to perform a grinding operation on a grinding head 401 of other specifications, the matching cylinder 307 can be started, and the matching cylinder 307 will drive the transmission frame 309 to move, so that the transmission frame 309 drives the transmission joint A311 to move through the transmission column 310, and the transmission joint A311 is disengaged from the transmission joint B402. At this time, the fixing screws between the fixed side head 403 and the transmission base 304 are removed, and then the mounting frame 4 is disassembled to replace the mounting frame 4 of the grinding head 401 of other specifications for installation. When the mounting frame 4 is installed, The mounting bracket 4 is inserted into the mounting groove 312, and the bottom of the mounting bracket 4 will touch the detection slider 315, and the bottom of the detection slider 315 will touch the proximity switch 317, and the proximity switch 317 will send a signal to the external control device. The external control device can start the matching cylinder 307, so that the matching cylinder 307 drives the transmission joint A311 and the transmission joint B402 to engage with each other. At this time, it means that the installation position of the mounting bracket 4 is accurate, so that the transmission motor 308 can drive the grinding head 401 to grind through the engagement between the transmission joint A311 and the transmission joint B402.

[0040] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. An automated rotary welding device for pipelines, characterized in that: include: A welding base (1), wherein the welding base (1) is shaped like a rectangular seat structure, and two groups of welding slide seats (2) are symmetrically arranged on the top of the welding base (1); a matching side seat (3) is fixedly arranged in the middle of one side of the welding base (1); a mounting frame (4) is fixedly arranged at the top front end of the matching side seat (3); the welding base (1) further comprises: a welding side seat (101), wherein the welding side seat (101) is shaped like a rectangular seat structure, and the welding side seat (101) is fixedly arranged in the middle of the other side of the welding base (1); A connecting pillar (102), wherein the shape of the welding pillar (102) is a rectangular pillar structure design, and the welding pillar (102) is fixedly installed on the top of the welding side seat (101); a welding cylinder (103), wherein the welding cylinder (103) is installed on the top of the welding pillar (102); a welding seat (104), wherein the shape of the welding seat (104) is a circular head structure design, and the welding seat (104) is fixedly installed on one end of the piston rod of the welding cylinder (103); a welding head (105), wherein the welding head (105) is fixedly installed on one side of the welding seat (104); The mating side seat (3) further comprises: a fixed side frame B (301), the fixed side frame B (301) being fixedly arranged on one side of the bottom of the mating side seat (3); a limiting top seat (302), the number of the limiting top seats (302) being set to two, and the limiting top seats (302) being symmetrically fixedly arranged on both sides of the top of the mating side seat (3); a transmission cylinder (303), the transmission cylinder (303) being installed and fixedly arranged in the middle of the top of the mating side seat (3); a transmission base (304), the shape of the transmission base (304) being an L-shaped seat structure design, and the transmission base (304) being slidably arranged between the two limiting top seats (302); a fixed frame B (305), the fixed frame B (305) being installed and fixedly arranged on the top of the transmission base (304); and a connecting side frame (306), the number of the connecting side frames (306) being set to two, and the connecting side frames (306) being symmetrically and integrally arranged on both sides of the fixing frame B (305); The mating side seat (3) further comprises: a mating cylinder (307), the mating cylinder (307) being fixedly mounted in the middle of the connecting side frame (306); a transmission motor (308), the transmission motor (308) being mounted in the middle of the fixed frame B (305); a transmission frame (309), the transmission frame (309) being slidably mounted on the top of the transmission base (304); a transmission connection between one side of the transmission frame (309) and one end of the piston rod of the mating cylinder (307); a transmission column (310), the transmission column (310) being in the shape of a circular column structure, the rear end of the transmission column (310) being in the shape of a hexagonal structure, and the rear end of the transmission column (310) being in the shape of a transmission shaft of the transmission motor (308); and a transmission joint A (311), the transmission joint A (311) being in the shape of a circular head structure, the transmission joint A (311) being provided with transmission teeth on one side, and the transmission joint A (311) being fixedly mounted at the front end of the transmission column (310).

2. The automatic rotary welding equipment for pipelines as claimed in claim 1, characterized in that: The welding base (1) further comprises: an adjusting screw (106) which is rotatably arranged in the middle of the top of the welding base (1); an adjusting motor A (107) which is installed in the middle of one end of the welding base (1); and fixed side frames A (108), the number of which is set to five, and the fixed side frames A (108) are symmetrically fixedly arranged on both sides of the welding base (1).

3. The automatic rotary welding equipment for pipelines as claimed in claim 1, characterized in that: The welding slide (2) further comprises: an adjustment joint (201), the adjustment joint (201) being fixedly mounted in the middle of the bottom of the welding slide (2); a threaded connection between the adjustment joint (201) and the adjustment screw (106); an adjustment motor B (202), the adjustment motor B (202) being fixedly mounted on one side of the top of the welding slide (2); and an adjustment side seat (203), the adjustment side seat (203) being shaped like a circular seat structure and being rotatably mounted on one side of the welding slide (2).

4. The automatic rotary welding equipment for pipelines as claimed in claim 3, characterized in that: The welding slide seat (2) further comprises: a fixing frame A (204), the number of the fixing frames A (204) being set to four, the fixing frames A (204) being installed and fixedly arranged in the middle of the adjustment side seat (203) in a ring array; a fixing cylinder (205), the fixing cylinder (205) being installed and fixedly arranged in the middle of the fixing frame A (204); a fixing slide block (206), the fixing slide block (206) being installed and fixedly arranged at one end of the piston rod of the fixing cylinder (205); a transmission ring gear (207), the transmission ring gear (207) being fixedly arranged at one side of the adjustment side seat (203); and the transmission ring gear (207) being connected to the rotating shaft of the adjustment motor B (202) via a gear transmission.

5. The automatic rotary welding equipment for pipelines as claimed in claim 1, characterized in that: The mating side seat (3) further comprises: a mounting groove (312), the mounting groove (312) being shaped like a rectangular groove structure and being opened at the top of one end of the transmission base (304); a connecting head (313), the connecting head (313) being fixedly mounted at one end of the bottom of the transmission base (304); a transmission connection between the connecting head (313) and one end of the piston rod of the transmission cylinder (303); a detection shell (314), the detection shell (314) being shaped like a rectangular shell structure and being fixedly mounted at the bottom of the mounting groove (312); and a detection slider (315), the detection slider (315) being shaped like a rectangular block structure and being slidably mounted inside the detection shell (314); A detection bracket (316) is fixedly mounted on the bottom of the detection shell (314); and a proximity switch (317) is mounted inside the detection shell (314).

6. The automatic rotary welding equipment for pipelines as claimed in claim 1, characterized in that: The mounting frame (4) further comprises: a grinding head (401), the grinding head (401) being rotatably arranged at the front end of the mounting frame (4); a transmission joint B (402), the transmission joint B (402) being in the shape of a round head structure and being fixedly arranged at the rear end of the grinding head (401); a transmission tooth being provided on one side of the transmission joint B (402), the transmission tooth of the transmission joint A (311) being engaged with the transmission tooth of the transmission joint B (402); a fixed side head (403), the number of the fixed side heads (403) being set to two, the fixed side heads (403) being symmetrically arranged in one piece at both sides of the mounting frame (4); and the fixed side head (403) being fixedly connected to the transmission base (304) by fixing screws.

Images