Circular water-cooling welding auxiliary device

Abstract

A circular water-cooling welding auxiliary device comprises a device center shaft, a tapered roller bearing, a thrust bearing, a swing arm, a connecting rod, a connecting rod pin shaft, an arc-shaped cover plate, a profiling water jacket, a swing arm air cylinder, a rotating air cylinder and the like. A combined circular component formed by tightly combining a circular rim-shaped body and a circular radial body in an interference fit mode is placed on the device, and the circular rim-shaped body is locked through the rotating action of rotating arms of a plurality of rotating air cylinders. The swing arm air cylinder drives the swing arm, the connecting rod, the arc-shaped cover plate and the profiling water jacket to synchronously move in the opposite directions, and automatic centering and clamping are achieved. Cooling liquid can freely flow in and out of the profiling water jacket through an external cooling machine, and the cooling liquid is effectively circulated. And in the welding process, the cooling liquid is used for cooling the cold liquid at the welding position, heat generated by welding is taken away, and therefore the stable temperature in the welding process is kept.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a circular water-cooled welding auxiliary device. Background Art

[0002] With the continuous and rapid development of the automobile manufacturing industry, especially in the fields of new energy, new materials, and intelligent manufacturing, the concept of personalization has become prominent, making the shape of two-piece or three-piece combined circular automobile parts changeable, convenient for personalized customization, and the application will be more extensive, the market will be broad, and the application background will be rich.

[0003] At present, most of the combined circular automobile sports parts are modified aluminum alloy forged parts, which are composed of several parts such as a circular rim body, a circular rib body, and a circular bushing body. They are tightened and fixed with special high-strength bolts and glued. Although this kind of circular automobile sports parts tightened by bolts can be matched and combined into a variety of styles and specifications, it provides convenience for car owners who want to show their individuality. However, its disadvantages are that the manufacturing process is complicated, the cost is high, and the selling price is relatively high. The weight and inertia force of circular automobile parts are large, and the weight is heavy. Moreover, the manufacturing process is complicated, and deformation and cracks are prone to occur. The dynamic balancing effect is poor, and the assembly requirements are high. Moreover, it is difficult to ensure product consistency by using high-strength bolt connection. There are tightening defects. The current production products are single, the production cycle is slow, and the efficiency is low. There are safety risks in ensuring vehicle safety and improving vehicle performance.

[0004] Through a combined circular component welding device, the circular rim body and the circular radial body are interference-fitted by welding, and then the connection between the circular radial body and the circular rim body is welded to form a complete circular component. The circular rim body part can be shared, and different shapes can be changed by simply replacing different styles of circular radial bodies, which is very convenient and efficient.

[0005] In the process of welding modular circular parts, the heat generated by welding is very difficult to control. Large welding current and high heat are prone to burn-through, undercut, pits and collapse, and even dissolution and excessive back penetration. Small welding current and low heat are prone to incomplete fusion and incomplete penetration, especially in areas with concentrated stress, which are prone to cracks. The strength and sealing of the welding are unqualified, and the welding quality is poor. How to reasonably and effectively control the welding temperature has become a technical problem that curbs the promotion and development of modular circular component welding. Summary of the invention

[0006] In view of this, the present invention aims to propose a circular water-cooled welding auxiliary device, which can be used alone or in conjunction with automatic welding equipment for combined circular components. The water-cooled welding auxiliary device that uses this coolant for repeated circulation and cooling can be used for automatic welding of combined circular components, thereby solving the technical difficulties in promoting the development of welding of combined circular components.

[0007] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0008] A circular water-cooled welding auxiliary device comprises a circular bottom plate, on which a left I support plate, a left II support plate, a right I support plate, and a right II support plate are fixed symmetrically on the left and right sides;

[0009] I rotary cylinder mounting plate, II rotary cylinder mounting plate, III rotary cylinder mounting plate, and IIII rotary cylinder mounting plate are symmetrically mounted on the circular bottom plate;

[0010] The left I bracket, the left II bracket, the right I bracket, and the right II bracket are respectively installed on the left I support plate, the left II support plate, the right I support plate, and the right II support plate, and the left I guide slider, the left II guide slider, the right I guide slider, and the right II guide slider are installed on the top of each of them;

[0011] The left arc cover plate and the right arc cover plate are respectively installed with a left I linear guide, a left II linear guide, a right I linear guide, and a right II linear guide at the lower part, and the left I guide slider matches with the left I linear guide, the left II guide slider matches with the left II linear guide, the right I guide slider matches with the right I linear guide, and the right II guide slider matches with the right II linear guide;

[0012] I rotary cylinder, II rotary cylinder, III rotary cylinder, IIII rotary cylinder are respectively mounted on I rotary cylinder mounting plate, II rotary cylinder mounting plate, III rotary cylinder mounting plate, IIII rotary cylinder mounting plate, and each rotary arm is equipped with a contoured clamping claw;

[0013] A central swing arm, one end of which is connected to a left connecting rod, and the other end of which is connected to a right connecting rod, the left connecting rod is connected to a left arc-shaped cover plate through a left connecting rod pin, and the right connecting rod is connected to a right arc-shaped cover plate through a right connecting rod pin;

[0014] The left swing arm cylinder and the right swing arm cylinder are connected to the circular bottom plate through the left swing arm cylinder bracket and the right swing arm cylinder bracket respectively, and the respective cylinder rod ends are connected to the central swing arm through the cylinder movable joint;

[0015] The left arc support and the right arc support are respectively installed on the left arc cover plate and the right arc cover plate, and the left arc profiled water jacket and the right arc profiled water jacket are respectively installed on the inner side of each of them, and the left arc profiled water jacket and the right arc profiled water jacket are made of copper;

[0016] The central axis of the device is installed on the center point of the circular bottom plate, and the bottom is a polished rod boss structure, and the upper part is an external thread structure, which is connected to the internal thread structure of the tapered locking nut;

[0017] The tapered bearing cap is installed outside the tapered roller bearing;

[0018] The center thrust bearing is mounted on a tapered bearing cap with a polyurethane center bracket mounted on it.

[0019] In some embodiments, the I rotary cylinder, the II rotary cylinder, the III rotary cylinder, and the IIII rotary cylinder are all magnetic ring cylinders, and a magnetic switch is installed on the outer wall of the cylinder for detecting the position of the cylinder piston.

[0020] In some embodiments, both the left swing arm cylinder and the right swing arm cylinder are magnetic ring cylinders, and a magnetic switch is installed on the outer wall of the cylinder for detecting the position of the cylinder piston.

[0021] In some embodiments, the conical locking nut adopts an internal thread structure arranged coaxially with the central axis of the device, and is connected with the external thread of the central axis of the device.

[0022] In some embodiments, the polyurethane central support is made of polymer material.

[0023] In some embodiments, the left arc contoured water jacket and the right arc contoured water jacket form an annular contoured water jacket in a closed state, which fits tightly to the weld connection between the circular web-shaped body and the circular rim-shaped body.

[0024] Compared with the prior art, the circular water-cooled welding auxiliary device of the present invention has the following advantages:

[0025] The circular water-cooled welding auxiliary device disclosed in the present invention can be used alone or in conjunction with automatic welding equipment for combined circular parts. The water-cooled welding auxiliary device that uses this coolant for repeated circulation and cooling can be used for automatic welding of combined circular parts to solve the technical difficulties in promoting the development of combined circular part welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a back layout diagram of a circular water-cooled welding auxiliary device of the present invention.

[0028] Figure 2 This is a front layout diagram of a circular water-cooled welding auxiliary device of the present invention.

[0029] Figure 3The present invention is a three-dimensional side view of a circular water-cooled welding auxiliary device.

[0030] Figure 4 This is an exploded view of the components of a circular water-cooled welding auxiliary device of the present invention.

[0031] Figure 5 This is a schematic diagram of a circular water-cooled welding auxiliary device in an open state according to the present invention.

[0032] Figure 6 This is a schematic diagram of a closed state of a circular water-cooled welding auxiliary device of the present invention.

[0033] Figure 7 This is a cross-sectional view of a circular water-cooled welding auxiliary device of the present invention.

[0034] Description of Reference Numerals

[0035] 100, circular bottom plate; 101, left I support plate; 102, left II support plate; 103, right I support plate; 104, right II support plate; 105 central thrust bearing; 106, I rotary cylinder mounting plate; 107, II rotary cylinder mounting plate; 108, III rotary cylinder mounting plate; 109, IIII rotary cylinder mounting plate; 110, device center axis; 111, left I bracket; 112, left II bracket; 113, right I bracket; 114, right II bracket; 115, left I guide slider; 116, left II guide slider; 117, right I guide slider; 118, right II guide slider; 119, left arc cover; 120, right arc cover; 121, left I linear guide; 122, Left II linear guide; 123, right I linear guide; 124, right II linear guide; 125, tapered bearing cover; 126, I rotary cylinder; 127, II rotary cylinder; 128, III rotary cylinder; 129, IIII rotary cylinder; 130, polyurethane center bracket; 131, tapered locking nut; 132, left arc support; 133, left arc contour water jacket; 134, right arc support; 135, right arc contour water jacket; 136, left swing arm cylinder; 137, right swing arm cylinder; 138, left connecting rod; 139, right connecting rod; 140, center swing arm; 141, left connecting rod pin; 142, right connecting rod pin; 143, left swing arm cylinder bracket; 144, right swing arm cylinder bracket. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and in combination with the embodiments. 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.

[0038] Reference below Figure 1 to Figure 2 The circular water-cooled welding auxiliary device according to the embodiment of the present invention is described in conjunction with the embodiment.

[0039] A circular water-cooled welding auxiliary device comprises: a circular bottom plate 100, a left I support plate 101, a left II support plate 102, a right I support plate 103, a right II support plate 104, a central thrust bearing 105, an I rotary cylinder mounting plate 106, an II rotary cylinder mounting plate 107, a III rotary cylinder mounting plate 108, an IIII rotary cylinder mounting plate 109, a device central axis 110, a left I bracket 111, a left II bracket 112, a right I bracket 113, a right II bracket 114, a left I guide rail slider 115, a left II guide rail slider 116, a right I guide rail slider 117, a right II guide rail slider 118, a left arc cover plate 119, a right arc cover plate 120, a left I linear guide Rail 121, left II linear guide 122, right I linear guide 123, right II linear guide 124, tapered bearing cover 125, I rotary cylinder 126, II rotary cylinder 127, III rotary cylinder 128, IIII rotary cylinder 129, polyurethane center bracket 130, tapered locking nut 131, left arc support 132, left arc profiled water jacket 133, right arc support 134, right arc profiled water jacket 135, left swing arm cylinder 136, right swing arm cylinder 137, left connecting rod 138, right connecting rod 139, center swing arm 140, left connecting rod pin 141, right connecting rod pin 142, left swing arm cylinder bracket 143, right swing arm cylinder bracket 144.

[0040] like Figure 1 As shown, a left I support plate 101, a left II support plate 102, a right I support plate 103, and a right II support plate 104 are symmetrically fixed on the circular base plate 100, and an I rotating cylinder mounting plate 106, a II rotating cylinder mounting plate 107, a III rotating cylinder mounting plate 108, and a IIII rotating cylinder mounting plate 109 are symmetrically installed up and down and left and right.

[0041] like Figure 2 As shown, a left I bracket 111 is installed on the left I support plate 101, and a left I guide rail slider 115 is installed on the top of the left I bracket 111.

[0042] A left I1 bracket 112 is mounted on the left II support plate 102, and a left II guide rail slider 116 is mounted on the top of the left II bracket 112. A right I bracket 113 is mounted on the right I support plate 103, and a right I guide rail slider 117 is mounted on the top of the right I bracket 113. A right II bracket 114 is mounted on the right II support plate 104, and a right II guide rail slider 118 is mounted on the top of the right I bracket 114.

[0043] A left I linear guide rail 121 and a left II linear guide rail 122 are installed under the left arc-shaped cover plate 119. (Refer to Figure 1 ) A right I linear guide rail 123 and a right II linear guide rail 124 are installed under the right arc-shaped cover plate 120.

[0044] (refer to Figure 1 )

[0045] The left I guide rail slider 115 cooperates with the left I linear guide rail 121, the left II guide rail slider 116 cooperates with the left II linear guide rail 122, the right I guide rail slider 117 cooperates with the right I linear guide rail 123, and the right II guide rail slider 118 cooperates with the right II linear guide rail 124.

[0046] I rotary cylinder 126 is installed on I rotary cylinder mounting plate 106, II rotary cylinder 127 is installed on II rotary cylinder mounting plate 107, III rotary cylinder 128 is installed on III rotary cylinder mounting plate 108, and IIII rotary cylinder 129 is installed on IIII rotary cylinder mounting plate 109. The above four rotary cylinders are all equipped with profiling claws on the rotating arms of the rotary cylinders. When the rotary cylinder solenoid valve is energized, the rotary cylinder is actuated, and the compressed air guides the cylinder piston to perform linear reciprocating motion, and the rotating arm of the rotary cylinder is rotated 90 degrees with the axis of the cylinder as the center point, so that the profiling claws installed on the rotating arm of the rotary cylinder run smoothly.

[0047] All rotary cylinders are magnetic ring cylinders. A magnetic switch is installed on the outer wall of the cylinder to detect the position of the cylinder piston. The control program system collects the magnetic switch signal to determine whether the rotary cylinder is in an open or closed state.

[0048] The circular rim is locked by the rotating action of the rotating arms of multiple rotating cylinders. The swing arm cylinder drives the swing arm, connecting rod, arc-shaped cover plate and contoured water jacket to move synchronously in relative directions to complete automatic centering clamping.

[0049] like Figure 3As shown, one end of the central swing arm 140 is connected to the left connecting rod 138. The other end of the central swing arm 140 is connected to the right connecting rod 139. The left swing arm cylinder 136 is connected to the circular base plate 100 through the left swing arm cylinder bracket 143, and the cylinder rod end of the left swing arm cylinder 136 is connected to one side of the central swing arm 140 through a cylinder movable joint. The right swing arm cylinder 137 is connected to the circular base plate 100 through the right swing arm cylinder bracket 144, and the cylinder rod end of the right swing arm cylinder 137 is connected to the other side of the central swing arm 140 through a cylinder movable joint.

[0050] The left side connecting rod 138 is connected to the left arc-shaped cover plate 119 through the left connecting rod pin 141. The left arc-shaped cover plate 119 is provided with a left arc-shaped support 132, and a left arc-shaped water jacket 133 is provided inside the left arc-shaped support 132.

[0051] The right side connecting rod 139 is connected with the right arc-shaped cover plate 120 through the right connecting rod pin 142. The right arc-shaped cover plate 120 is provided with a right arc-shaped support 134, and the right arc-shaped water jacket 135 is provided inside the right arc-shaped support 134.

[0052] The left arc-shaped water jacket 133 and the right arc-shaped water jacket 135 are made of copper and have extremely high thermal conductivity.

[0053] The left swing arm cylinder 136 and the right swing arm cylinder 137 move synchronously. The extension and retraction of the cylinder rods of the left swing arm cylinder 136 and the right swing arm cylinder 137 drive the central swing arm 140, the left connecting rod 138, and the right connecting rod 139 to move synchronously in relative directions with the central axis 110 of the device as the center.

[0054] At the same time, the left connecting rod 138 drives the left arc cover 119, the left arc support 132, and the left arc contoured water jacket 133 through the left connecting rod pin 141, and slides horizontally parallel along the left I linear guide 121 and the left II linear guide 122 through the left I guide slider 115 and the left II guide slider 116.

[0055] The right connecting rod 139 drives the right arc cover plate 120, the right arc support 134, and the right arc contour water jacket 135 through the right connecting rod pin 142, and slides horizontally along the right I linear guide 123 and the right II linear guide 124 through the right I guide slider 117 and the right II guide slider 118.

[0056] The extension and retraction of the cylinder rods of the left swing arm cylinder 136 and the right swing arm cylinder 137 synchronously complete the automatic opening and closing actions of the left arc-shaped cover plate 119, the left arc-shaped support 132, the left arc-shaped contoured water jacket 133, the right arc-shaped cover plate 120, the right arc-shaped support 134, and the right arc-shaped contoured water jacket 135.

[0057] The left swing arm cylinder 136 and the right swing arm cylinder 137 are both magnetic ring cylinders. A magnetic switch is installed on the outer wall of the cylinder to detect the position of the cylinder piston. The control program system collects the magnetic switch signal to determine whether the left swing arm cylinder 136 and the right swing arm cylinder 137 are in the extended and retracted state, and to determine whether the synchronously running left arc support 132, left arc contoured water jacket 133 and right arc support 134, right arc contoured water jacket 135 are in the open or closed state.

[0058] like Figure 4 As shown, the central axis 110 of the device is installed at the center point of the circular bottom plate 100. The bottom section of the central axis 110 of the device is a polished boss structure, so that the tapered roller bearing is conveniently installed and connected to the central swing arm 140. The upper section of the polished boss structure of the central axis 110 of the device is an external thread structure, so as to be conveniently connected to the internal thread structure on the tapered locking nut 131. The tapered locking nut 131 adopts an internal thread structure arranged coaxially with the central axis 110 of the device, so that the internal thread of the tapered locking nut 131 can be matched and connected with the external thread of the central axis 110 of the device.

[0059] A tapered bearing cover 125 is installed outside the tapered roller bearing, which is concentric with the central axis 110 of the device. It can isolate dust, aluminum chips, dirt, grease and other impurities from the outside, prevent them from entering the inside of the tapered roller bearing, protect the bearing from interference from the external environment, reduce friction, ensure the normal operation of the bearing, and effectively extend the service life of the bearing.

[0060] The center thrust bearing 105 is installed on the tapered bearing cover 125, and the polyurethane center bracket 130 is installed on the center thrust bearing 105. The polyurethane center bracket 130 is a polymer material with good resilience, oil resistance, wear resistance, and aging resistance. The polyurethane center bracket 130 can flexibly and stably contact the surface of the circular radial body, effectively preventing the contact surface of the circular radial body from being scratched. The center thrust bearing 105 mainly bears the axial load, effectively bears the weight of the circular radial body and the circular rim body, and ensures that the polyurethane center bracket 130 can rotate freely when the circular radial body and the circular rim body are loaded.

[0061] like Figure 5 As shown,

[0062] First, loosen the conical locking nut 131 by rotating it counterclockwise.

[0063] The extension of the cylinder rods of the left swing arm cylinder 136 and the right swing arm cylinder 137 simultaneously completes the automatic opening of the left arc-shaped cover plate 119, the left arc-shaped support 132, the left arc-shaped contoured water jacket 133, the right arc-shaped cover plate 120, the right arc-shaped support 134, and the right arc-shaped contoured water jacket 135, and forms a combined circular component with the circular rim-shaped body and the circular width-shaped body that have been heat-expanded and pressed and maintained with an interference fit, which is turned over and installed on the polyurethane central bracket 130 through the central axis 110 of the device.

[0064] I rotary cylinder 126, II rotary cylinder 127, III rotary cylinder 128, IIII rotary cylinder 129

[0065] After the solenoid valve is energized, the rotary cylinder is actuated, and the rotating arm of the rotary cylinder rotates 90 degrees with the axis of the cylinder as the center point, so that the contoured clamping claw installed on the rotating arm of the rotary cylinder tightly locks the edge of the circular rim of the combined circular component.

[0066] At this time, the conical locking nut 131 is tightened by rotating clockwise, and it is ensured that the conical surface of the conical locking nut 131 is in close contact with the central hole of the circular radial body.

[0067] like Figure 6 As shown, the cylinder rods of the left swing arm cylinder 136 and the right swing arm cylinder 137 are retracted, and the left arc cover plate 119, the left arc support 132, and the left arc profiled water jacket 133 are synchronously completed, and the right arc cover plate 120, the right arc support 134, and the right arc profiled water jacket 135 are horizontally moved and completely closed. At this time, the left arc profiled water jacket 133 and the right arc profiled water jacket 135 are in a smooth sealed closed state. The coolant can freely flow in and out of the left arc profiled water jacket 133 and the right arc profiled water jacket 135, and the coolant is effectively circulated through the external cooler.

[0068] like Figure 7 As shown, the left arc-shaped water jacket 133 and the right arc-shaped water jacket 135 are in a smooth, sealed and closed state, and the annular contoured water jacket belt is closely attached to the weld connection between the circular web-shaped body and the circular rim-shaped body.

[0069] The coolant has a high specific heat capacity and heat capacity. When the coolant circulates through the welding area during the welding process, it absorbs the heat generated by welding, thereby reducing the temperature of the welding area, ensuring that the heat can be evenly distributed and avoiding local overheating. Prevent the weld joint from overheating and causing the material of the combined circular component to deform. Make the welding operation of the combined circular component easier and simpler, ensure the integrity and reliability of the welding structure, and have higher welding quality, stronger practical promotion, and suitable for workshop batch production.

[0070] This circular water-cooled welding auxiliary device adopts a mechanical structure symmetrical mirroring method, including: a device center axis and a tapered roller bearing, a thrust bearing, a swing arm, a connecting rod and a connecting rod pin, an arc cover plate, a contoured water jacket, a swing arm cylinder and a rotating cylinder, etc. A combined circular component that tightly combines a circular rim-shaped body and a circular rib-shaped body by interference fit is placed on a circular water-cooled welding auxiliary device provided by the present invention, and the circular rim-shaped body is locked by the rotating arm rotation action of multiple rotating cylinders. The swing arm cylinder drives the swing arm, the connecting rod, the arc cover plate, and the contoured water jacket to move synchronously in relative directions, and automatically aligns and clamps. The coolant can flow freely in and out of the contoured water jacket through an external cooler, and the coolant is effectively circulated. At this time, the circular ring weld is welded at the tight junction of the circular rim-shaped body and the circular rib-shaped body until the circular rim-shaped body and the circular rib-shaped body are completely integrated. In the welding process, the coolant is used to cool the welding position, taking away the heat generated by welding, thereby maintaining a stable temperature during the welding process.

[0071] The left arc contoured water jacket and the right arc contoured water jacket are made of copper and have extremely high thermal conductivity.

[0072] The coolant has a high specific heat capacity and heat capacity. During the welding process, the coolant is transported to the welding fusion heating part through the cold liquid circulation system, and the welding heat is absorbed and then transported back to the cold liquid tank for cooling. The coolant is continuously circulated to cool the welding position. When the coolant circulates through the welding area during the welding process, it absorbs the heat generated by welding, thereby reducing the temperature of the welding area, ensuring that the heat can be evenly distributed and avoiding local overheating. Prevent the deformation of the combined circular component material due to overheating at the weld joint. Effectively prevent the defects of the traditional welding process and the difficulty in controlling the gradual temperature of the welding process, resulting in the inability to effectively release the stress of the welding material during the welding process. It is very easy to have insufficient weld penetration and poor base material connection on the weld end face, and there will be unfusion, bubbles, inclusions, cracking of the weld layer, layered tearing, peeling, as well as burn-through, undercut, and back penetration. And the welding efficiency is high, which can reach 100% of the temporary load rate. It has the characteristics of durability and good heat dissipation. Effectively reduce deformation and stress during welding, and ensure good weld transition, ensuring the mechanical properties and stability of the welding area.

[0073] The polyurethane center bracket is a polymer material with good resilience, oil resistance, wear resistance, and aging resistance. The polyurethane center bracket can flexibly and stably contact the surface of the circular radial body, effectively preventing the contact surface of the circular radial body from being scratched. The center thrust bearing 105 mainly bears the axial load, effectively bearing the weight of the circular radial body and the circular rim body, and ensuring that the polyurethane center bracket can rotate freely when the circular radial body and the circular rim body are loaded.

[0074] All cylinders are magnetic ring cylinders. A magnetic switch is installed on the outer wall of the cylinder to detect the position of the cylinder piston. The control program system collects the magnetic switch signal to determine whether the cylinder is in an open or closed state.

[0075] The circular rim is locked by the rotating action of the rotating arms of multiple rotating cylinders. The swing arm cylinder drives the swing arm, connecting rod, arc-shaped cover plate and contoured water jacket to move synchronously in relative directions to complete automatic centering clamping.

[0076] According to the present invention, a circular water-cooled welding auxiliary device is provided, and the specific operation process is as follows:

[0077] First, through the touch screen window of the electronic control part, set the initialization cylinder magnetic switch detection position signal and the peripheral device connection function detection signal, and rotate counterclockwise to loosen the conical locking nut 131 and put it aside.

[0078] The program controls the actions of the left swing arm cylinder 136 and the right swing arm cylinder 137. As the swing arm cylinder rods extend, the left arc cover plate 119, the left arc support 132, the left arc profile water jacket 133, the right arc cover plate 120, the right arc support 134, and the right arc profile water jacket 135 are automatically opened synchronously, making it convenient for operators to load materials.

[0079] At this time, the circular rim-shaped body and the circular flange-shaped body that have been heat-expanded and pressed and maintained with interference fit are formed into a combined circular component, which is then turned over and passed through the device center axis 110 to be installed on the polyurethane center bracket 130.

[0080] After the electromagnetic valves of the program-controlled rotary cylinders I 126, II 127, III 128, and IIII 129 are energized, the rotary cylinders are actuated, and the rotary arms of the rotary cylinders are rotated 90 degrees with the axis of the cylinders as the center point, so that the contoured clamping claws installed on the rotary arms of the rotary cylinders tightly lock the edges of the circular rims of the combined circular components, completing automatic centering clamping.

[0081] At this time, the conical locking nut 131 is tightened by rotating clockwise, and it is ensured that the conical surface of the conical locking nut 131 is in close contact with the central hole of the circular radial body.

[0082] After the loading is completed, the operator presses the equipment start button, and the program controls the retraction of the cylinder rods of the left swing arm cylinder 136 and the right swing arm cylinder 137, and synchronously completes the automatic closing of the left arc cover plate 119, the left arc support 132, the left arc profile water jacket 133, the right arc cover plate 120, the right arc support 134, and the right arc profile water jacket 135. At this time, the left arc profile water jacket 133 and the right arc profile water jacket 135 of this circular water-cooled welding auxiliary device are in a smooth sealed closed state, and the coolant can flow freely in and out of the profile water jacket through the external cooler, and the coolant is effectively circulated. The closed annular profile water jacket fits tightly at the position where the combined circular component needs to be welded.

[0083] The welding power source is started, the protection function is started, the cooling liquid circulation device is started, and the shielding gas pressure monitoring is started. The cooling liquid circulation device pumps the cooling liquid into the closed annular contoured water jacket, and the cooling liquid begins to circulate.

[0084] At this time, the equipment program controls the process of welding, and the coolant is transported to the welding fusion heat-generating part through the cold liquid circulation system, and then transported back to the cold liquid tank for cooling after absorbing the welding heat. The coolant is continuously circulated to cool the welding position. When the coolant circulates through the welding area during the welding process, it absorbs the heat generated by welding, thereby reducing the temperature of the welding area, ensuring that the heat can be evenly distributed and avoiding local overheating. Prevent the weld joint from overheating and causing deformation of the combined circular component material.

[0085] After welding is completed, the program controls the left swing arm cylinder 136 and the right swing arm cylinder 137 to move. As the swing arm cylinder rod extends, the left arc cover plate 119, the left arc support 132, the left arc profile water jacket 133, the right arc cover plate 120, the right arc support 134, and the right arc profile water jacket 135 are automatically opened. The program controls the solenoid valves of the I rotary cylinder 126, the II rotary cylinder 127, the III rotary cylinder 128, and the IIII rotary cylinder 129 to be energized again, and the rotary cylinder moves. The rotating arm of the rotary cylinder rotates in the opposite direction with the axis of the cylinder as the center point, so that the profile clamp installed on the rotating arm of the rotary cylinder completely loosens the circular rim edge of the combined circular component, and the welded combined circular component is taken out to perform a new round of welding operation.

[0086] The equipment program system monitors the operation of the equipment in real time to ensure that important operating values ​​such as coolant pressure, coolant temperature, and cylinder pressure are within the reasonable range of set values, the equipment has no error alarm information, and the welding process is continuous without interruption or alarm. Through the above logical actions, information storage and traceability can be completed, and the outflow of waste can be effectively avoided.

[0087] Compared with the prior art, the circular water-cooled welding auxiliary device of the present invention has the following advantages:

[0088] The circular water-cooled welding auxiliary device disclosed in the present invention can be used alone or in conjunction with automatic welding equipment for combined circular parts. The water-cooled welding auxiliary device that uses this coolant for repeated circulation and cooling can be used for automatic welding of combined circular parts to solve the technical difficulties in promoting the development of combined circular part welding.

[0089] This device can meet the needs of combined circular parts welding. This circular water-cooled welding auxiliary device can be used not only alone, but also in conjunction with combined circular parts automatic welding equipment. It is convenient for continuous production and meets the needs of combined circular parts welding products. It has broad prospects and trends. It can better adapt to different combined circular parts welding tasks, improve the application level of circular water-cooled welding auxiliary devices and automatic welding equipment, further enhance collaborative operation and flexibility, improve production efficiency, and make significant progress in intelligence and integration.

[0090] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0091] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0092] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circular water-cooled welding auxiliary device, characterized in that: It includes a circular bottom plate, on which a left I support plate, a left II support plate, a right I support plate, and a right II support plate are fixed symmetrically on the left and right sides; I rotary cylinder mounting plate, II rotary cylinder mounting plate, III rotary cylinder mounting plate, and IIII rotary cylinder mounting plate are symmetrically mounted on the circular bottom plate; The left I bracket, the left II bracket, the right I bracket, and the right II bracket are respectively installed on the left I support plate, the left II support plate, the right I support plate, and the right II support plate, and the left I guide slider, the left II guide slider, the right I guide slider, and the right II guide slider are installed on the top of each; The left arc cover plate and the right arc cover plate are respectively installed with a left I linear guide, a left II linear guide, a right I linear guide, and a right II linear guide at the lower part, and the left I guide slider matches with the left I linear guide, the left II guide slider matches with the left II linear guide, the right I guide slider matches with the right I linear guide, and the right II guide slider matches with the right II linear guide; I rotary cylinder, II rotary cylinder, III rotary cylinder, IIII rotary cylinder are respectively mounted on I rotary cylinder mounting plate, II rotary cylinder mounting plate, III rotary cylinder mounting plate, IIII rotary cylinder mounting plate, and each rotary arm is equipped with a contoured clamping claw; A central swing arm, one end of which is connected to a left connecting rod, and the other end of which is connected to a right connecting rod, the left connecting rod is connected to a left arc-shaped cover plate through a left connecting rod pin, and the right connecting rod is connected to a right arc-shaped cover plate through a right connecting rod pin; The left swing arm cylinder and the right swing arm cylinder are connected to the circular bottom plate through the left swing arm cylinder bracket and the right swing arm cylinder bracket respectively, and the respective cylinder rod ends are connected to the central swing arm through the cylinder movable joint; The left arc support and the right arc support are respectively installed on the left arc cover plate and the right arc cover plate, and the left arc profiled water jacket and the right arc profiled water jacket are respectively installed on the inner side of each of them, and the left arc profiled water jacket and the right arc profiled water jacket are made of copper; The central axis of the device is installed at the center point of the circular bottom plate, and the bottom is a polished rod boss structure, and the upper part is an external thread structure, which is connected to the internal thread structure of the tapered locking nut; The tapered bearing cap is installed outside the tapered roller bearing; The center thrust bearing is installed on the tapered bearing cover, and a polyurethane center bracket is installed on the center thrust bearing.

2. The circular water-cooled welding auxiliary device according to claim 1, characterized in that: I rotary cylinder, II rotary cylinder, III rotary cylinder and IIII rotary cylinder are all magnetic ring cylinders, and a magnetic switch is installed on the outer wall of the cylinder to detect the position of the cylinder piston.

3. The circular water-cooled welding auxiliary device according to claim 1, characterized in that: The left swing arm cylinder and the right swing arm cylinder are both magnetic ring cylinders, and a magnetic switch is installed on the outer wall of the cylinder to detect the position of the cylinder piston.

4. The circular water-cooled welding auxiliary device according to claim 1, characterized in that: The conical locking nut adopts an internal thread structure which is coaxially arranged with the central axis of the device and is matched and connected with the external thread of the central axis of the device.

5. The circular water-cooled welding auxiliary device according to claim 1, characterized in that: The polyurethane center bracket is made of polymer material.

6. The circular water-cooled welding auxiliary device according to claim 1, characterized in that: The left arc profiled water jacket and the right arc profiled water jacket form an annular profiled water jacket in a closed state, which is closely fitted to the weld connection between the circular web-shaped body and the circular rim-shaped body.

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