Welding auxiliary trolley

Abstract

The utility model relates to the technical field of welding trolleys, and discloses an auxiliary welding trolley which comprises a bottom plate, a supporting plate is fixedly installed at the top of the bottom plate, a supporting ring is fixedly installed at the top of the supporting plate, and a winding trolley assembly facilitating girth welding is arranged on the supporting ring. The winding trolley assembly comprises an outer gear ring, an open groove, a movable wheel, a mounting shell, a motor, a rotating shaft and a gear. According to the welding auxiliary trolley, the winding trolley assembly is arranged, after the winding trolley assembly is used, under external meshing of an outer gear ring and a gear, the outer gear ring is fixedly installed on the outer surface of a supporting ring, rotation of the gear can drive an installation shell to do circular motion around the outer gear ring, and due to the fact that a movable wheel stretches into the inner wall of an open groove, the movable wheel can rotate around the outer gear ring; and the mounting shell cannot be separated from the outer gear ring, so that circular seam welding can be completely carried out on cylindrical workpieces such as a pipeline tank body, dislocation caused by rotation of the cylindrical workpieces such as the pipeline tank body can be avoided, and the welding firmness is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of welding trolleys, in particular to a welding auxiliary trolley. Background Art

[0002] Welding is a process of combining metals or other thermoplastic materials by heating at high temperatures or high pressures. With the continuous development of modern technology, the methods of welding are constantly changing. Among them, the welding carriage is a device that can achieve welding in various positions such as vertical welding, transverse welding and horizontal welding.

[0003] After searching, Chinese patent CN219581899U was found and announced a welding trolley auxiliary device, which is provided with a first support plate and a second support plate that can be at an angle of 90°-180°, and the support plate can control its upper and lower heights by cooperating with a sliding sleeve rod and an adjusting member, and the support plate is moved to the front end and the end of the steel plate at different angles to be welded to serve as an additional stroke of the welding trolley, so that the welding trolley welding gun can travel all the welding parts of the steel plate to be welded, and no unwelded section will be left at the end of the steel plate to be welded. It can be seen that this patent realizes the complete welding of the welded steel plate, but it is still the transverse welding and horizontal welding of the steel plate. If it is for welding the weld seams of cylindrical workpieces such as pipes and tanks, the welding trolley auxiliary device is no longer applicable. If the cylindrical workpieces such as pipes and tanks are rotated, and the welding machine welds the weld seams, the rotating cylindrical workpieces such as pipes and tanks are prone to dislocation, affecting the firmness of the welding. For this reason, a welding auxiliary trolley is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a welding auxiliary trolley, which has the advantage of facilitating circumferential seam welding.

[0005] In order to achieve the above-mentioned purpose of facilitating circumferential seam welding, the utility model provides the following technical solution: a welding auxiliary trolley comprises a base plate, a support plate is fixedly mounted on the top of the base plate, a support ring is fixedly mounted on the top of the support plate, and a circling trolley assembly for facilitating circumferential seam welding is provided on the support ring;

[0006] The winding trolley assembly includes an outer ring gear, a slot, a movable wheel, a mounting shell, a motor, a rotating shaft and a gear. The outer ring gear is fixedly mounted on the outer surface of the support ring, the slot is opened on the front wall and the rear wall of the outer ring gear, the movable wheel is movably connected to the inner wall of the slot, and there are two movable wheels in each slot. The mounting shell is rotatably connected to the outer surface of the movable wheel, the motor is fixedly mounted on the back side of the mounting shell, the rotating shaft is fixedly mounted on the output shaft of the motor, the gear is fixedly mounted on the outer surface of the rotating shaft, and the outer ring gear is engaged with the outside of the gear.

[0007] Furthermore, the slot is in the shape of a circular ring, the movable wheel extends into the inner wall of the slot, the rotating shaft is rotatably connected to the mounting shell, and the gear is located inside the mounting shell.

[0008] Furthermore, a mounting hole is provided on the bottom plate and on the outer side of the support plate, and a mounting plate is fixedly mounted on the front wall of the mounting shell.

[0009] Furthermore, a telescopic cylinder is fixedly mounted on the side wall of the mounting plate, a connecting plate is fixedly mounted on the output end of the telescopic cylinder, a guide rod slidably connected to the mounting plate is fixedly mounted on the side wall of the connecting plate, and a welding head is fixedly mounted on the connecting plate.

[0010] Furthermore, a center positioning assembly is provided on the support ring, and the center positioning assembly includes a movable ring, a connecting cylinder, a movable frame, a connecting rod and a contact wheel. The movable ring is rotatably connected to the outer surface of the support ring, the connecting cylinder is hinged between the support ring and the opposite side of the movable ring, the movable frame is rotatably connected to the end of the support ring, the connecting rod is rotatably connected to the end of the movable ring and rotatably connected to the inner side of the movable frame, and the contact wheel is fixedly mounted on the inner side of the connecting rod.

[0011] Furthermore, a first support rod hinged to the connecting cylinder is fixedly mounted on the outer surface of the support ring, a second support rod hinged to the connecting cylinder is fixedly mounted on the outer surface of the movable ring, and the movable frame is T-shaped.

[0012] Compared with the prior art, the present invention provides a welding auxiliary trolley with the following beneficial effects:

[0013] The welding auxiliary trolley is provided with a winding trolley assembly. After the winding trolley assembly is used, the outer gear ring is engaged with the outer gear, and the outer gear ring is fixedly installed on the outer surface of the support ring. The rotation of the gear will drive the mounting shell to perform circular motion around the outer gear ring. Because the movable wheel extends into the inner wall of the slot, the mounting shell will not be separated from the outer gear ring, thereby completely welding the annular seam of cylindrical workpieces such as pipelines and tanks, and will not be dislocated due to the rotation of the cylindrical workpieces such as pipelines and tanks, thereby ensuring the firmness of the welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front perspective diagram of the structure of the utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the rear side of the structure of the utility model;

[0016] Figure 3 This is a front perspective sectional view of the mounting shell of the structure of the utility model.

[0017] In the figure: 1 base plate, 2 support plate, 3 support ring, 4 winding trolley assembly, 41 outer gear ring, 42 slot, 43 movable wheel, 44 mounting shell, 45 motor, 46 rotating shaft, 47 gear, 5 mounting hole, 6 mounting plate, 7 telescopic cylinder, 8 connecting plate, 9 guide rod, 10 welding head, 11 center positioning assembly, 111 movable ring, 112 connecting cylinder, 113 movable frame, 114 connecting rod, 115 contact wheel, 12 first support rod, 13 second support rod. DETAILED DESCRIPTION

[0018] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The welding auxiliary trolley includes a base plate 1, a support plate 2 is fixedly installed on the top of the base plate 1, a support ring 3 is fixedly installed on the top of the support plate 2, and a mounting hole 5 is opened on the base plate 1 and located on the outside of the support plate 2. The base plate 1 can be fixed by passing a screw through the mounting hole 5.

[0020] See also Figure 1-3 A center positioning assembly 11 is provided on the support ring 3, and the center positioning assembly 11 includes a movable ring 111, a connecting cylinder 112, a movable frame 113, a connecting rod 114 and a contact wheel 115. The movable ring 111 is rotatably connected to the outer surface of the support ring 3 and can rotate around the outer surface of the support ring 3. The connecting cylinder 112 is hinged between the support ring 3 and the opposite side of the movable ring 111. The outer surface of the support ring 3 is fixedly installed with a first support rod 12 hinged to the connecting cylinder 112, and the outer surface of the movable ring 111 is fixedly installed with a second support rod 13 hinged to the connecting cylinder 112. The connecting cylinder 112 is extended and retracted, driving the movable ring 111 to rotate forward and backward around the support ring 3, thereby realizing the clamping or loosening of the outer surface of cylindrical workpieces such as pipelines and tanks.

[0021] In addition, the movable frame 113 is rotatably connected to the end of the support ring 3. There are three movable frames 113, and the shape of the movable frame 113 is T-shaped. The connecting rod 114 is rotatably connected to the end of the movable ring 111 and is rotatably connected to the inner side of the movable frame 113. Under the connection of the connecting rod 114, the rotation of the movable ring 111 can drive the three movable frames 113 to rotate at the same time. The contact wheel 115 is fixedly installed on the inner side of the connecting rod 114. The connecting rod 114 drives the contact wheel 115 to move toward the cylindrical workpiece such as the pipeline tank body, and can realize three-point center positioning clamping, ensuring that the axis center of the cylindrical workpiece such as the pipeline tank body is in the same straight line with the axis center of the support ring 3, thereby avoiding obstruction of the circumferential seam welding of the welding head 10.

[0022] See also Figure 1-3 A winding trolley assembly 4 is provided on the support ring 3 for convenient circumferential seam welding. The winding trolley assembly 4 includes an outer ring gear 41, a slot 42, a movable wheel 43, a mounting shell 44, a motor 45, a rotating shaft 46 and a gear 47. The outer ring gear 41 is fixedly mounted on the outer surface of the support ring 3. The slot 42 is opened on the front wall and the rear wall of the outer ring gear 41. The shape of the slot 42 is annular. The movable wheel 43 is movably connected to the inner wall of the slot 42. The movable wheel 43 can move along the trajectory of the annular slot 42. The movable wheel 43 extends into the inner wall of the slot 42. There are two movable wheels 43 in each slot 42.

[0023] In addition, the mounting shell 44 is rotatably connected to the outer surface of the movable wheel 43. Under the connection between the two movable wheels 43 and each slot 42, the mounting shell 44 makes a circular motion along the outer gear ring 41, which is beneficial to the circumferential welding of cylindrical workpieces such as pipeline tank bodies. The front wall of the mounting shell 44 is fixedly installed with a mounting plate 6, which can make a circular motion around the outer gear ring 41, effectively completing the circumferential welding of cylindrical workpieces such as pipeline tank bodies.

[0024] At the same time, the motor 45 is fixedly mounted on the back of the mounting shell 44, the rotating shaft 46 is fixedly mounted on the output shaft of the motor 45, the rotating shaft 46 is rotatably connected to the mounting shell 44, and can support the mounting shell 44. The gear 47 is fixedly mounted on the outer surface of the rotating shaft 46, and the outer ring gear 41 is externally meshed with the gear 47. When the motor 45 is started, the rotating shaft 46 and the gear 47 rotate. Since the outer ring gear 41 is fixed, under the external meshing of the outer ring gear 41 and the gear 47, the gear 47 pushes the mounting shell 44 to perform a circular motion around the outer ring gear 41, thereby completing the annular seam welding of cylindrical workpieces such as pipelines and tanks. The gear 47 is located inside the mounting shell 44.

[0025] See also Figure 1-2The side wall of the mounting plate 6 is fixedly mounted with a telescopic cylinder 7, and the output end of the telescopic cylinder 7 is fixedly mounted with a connecting plate 8. The side wall of the connecting plate 8 is fixedly mounted with a guide rod 9 which is slidably connected to the mounting plate 6, which can support the connecting plate 8. A welding head 10 is fixedly mounted on the connecting plate 8. The telescopic cylinder 7 extends, driving the welding head 10 to move to the weld of cylindrical workpieces such as pipes and tanks, and welding work is performed along the weld.

[0026] When this embodiment is in use, the telescopic cylinder 7 is extended to push the welding head 10 into the weld of a cylindrical workpiece such as a pipe or tank, and the motor 45 is started, and the rotating shaft 46 and the gear 47 rotate. Since the outer ring gear 41 is fixed, the gear 47 is engaged with the outer ring gear 41 and the movable wheel 43 rolls on the inner wall of the slot 42, allowing the mounting shell 44 and the welding head 10 to make a circular motion around the outer ring gear 41, thereby allowing the welding head 10 to complete the circumferential seam welding along the weld of a cylindrical workpiece such as a pipe or tank.

[0027] The beneficial effects of the above embodiment are:

[0028] The welding auxiliary trolley is provided with a winding trolley assembly 4. After the winding trolley assembly 4 is used, the outer ring gear 41 is engaged with the gear 47, and the outer ring gear 41 is fixedly installed on the outer surface of the support ring 3. The rotation of the gear 47 will drive the mounting shell 44 to make a circular motion around the outer ring gear 41. Because the movable wheel 43 extends into the inner wall of the slot 42, the mounting shell 44 will not be separated from the outer ring gear 41, so that the annular seam of cylindrical workpieces such as pipelines and tanks can be completely welded, and dislocation will not occur due to the rotation of the cylindrical workpieces such as pipelines and tanks, thereby ensuring the firmness of the welding.

[0029] The motor 45, telescopic cylinder 7, welding head 10 and connecting cylinder 112 appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding auxiliary trolley, comprising a base plate (1), a support plate (2) fixedly mounted on the top of the base plate (1), and a support ring (3) fixedly mounted on the top of the support plate (2), characterized in that: The support ring (3) is provided with a winding trolley assembly (4) for facilitating circumferential seam welding; The winding trolley assembly (4) includes an outer gear ring (41), a slot (42), a movable wheel (43), a mounting shell (44), a motor (45), a rotating shaft (46) and a gear (47), wherein the outer gear ring (41) is fixedly mounted on the outer surface of the support ring (3), the slot (42) is opened on the front wall and the rear wall of the outer gear ring (41), the movable wheel (43) is movably connected to the inner wall of the slot (42), each slot (42) has two movable wheels (43), the mounting shell (44) is rotatably connected to the outer surface of the movable wheel (43), the motor (45) is fixedly mounted on the back side of the mounting shell (44), the rotating shaft (46) is fixedly mounted on the output shaft of the motor (45), the gear (47) is fixedly mounted on the outer surface of the rotating shaft (46), and the outer gear ring (41) is externally meshed with the gear (47).

2. The welding auxiliary trolley according to claim 1, characterized in that: The slot (42) is in the shape of a circular ring, the movable wheel (43) extends into the inner wall of the slot (42), the rotating shaft (46) is rotatably connected to the mounting shell (44), and the gear (47) is located inside the mounting shell (44).

3. The welding auxiliary trolley according to claim 1, characterized in that: A mounting hole (5) is provided on the bottom plate (1) and located outside the support plate (2), and a mounting plate (6) is fixedly mounted on the front wall of the mounting shell (44).

4. The welding auxiliary trolley according to claim 3, characterized in that: A telescopic cylinder (7) is fixedly mounted on the side wall of the mounting plate (6), a connecting plate (8) is fixedly mounted on the output end of the telescopic cylinder (7), a guide rod (9) slidably connected to the mounting plate (6) is fixedly mounted on the side wall of the connecting plate (8), and a welding head (10) is fixedly mounted on the connecting plate (8).

5. The welding auxiliary trolley according to claim 1, characterized in that: The support ring (3) is provided with a center positioning assembly (11), and the center positioning assembly (111) includes a movable ring (111), a connecting cylinder (112), a movable frame (113), a connecting rod (114) and a contact wheel (115). The movable ring (111) is rotatably connected to the outer surface of the support ring (3), the connecting cylinder (112) is hinged between the support ring (3) and the opposite side of the movable ring (111), the movable frame (113) is rotatably connected to the end of the support ring (3), the connecting rod (114) is rotatably connected to the end of the movable ring (111) and is rotatably connected to the inner side of the movable frame (113), and the contact wheel (115) is fixedly mounted on the inner side of the connecting rod (114).

6. The welding auxiliary trolley according to claim 5, characterized in that: A first support rod (12) hinged to a connecting cylinder (112) is fixedly mounted on the outer surface of the support ring (3), a second support rod (13) hinged to a connecting cylinder (112) is fixedly mounted on the outer surface of the movable ring (111), and the movable frame (113) is T-shaped.

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