Combined circular component welding equipment

Abstract

The invention provides combined circular part welding equipment which comprises a robot assembly, an L-shaped positioner, an automatic clamp, cold liquid circulating equipment and a welding power source, and an automatic clamping device is installed on the L-shaped positioner; the automatic clamp is used for clamping the combined circular part; the L-shaped positioner is used for turning over the automatic clamp in the welding production process; the robot assembly comprises a robot water-cooling welding gun and is used for welding the combined circular part; the welding power source is connected with the robot water-cooling welding gun, the cold liquid circulation equipment is communicated with the robot water-cooling welding gun and the cold plate type liquid cooling device, and the cold liquid circulation equipment pumps cooling liquid into the robot water-cooling welding gun and the cold plate type liquid cooling device. And cooling liquid of the cold liquid circulating equipment flows into the cold plate type liquid cooling device I and the cold plate type liquid cooling device II. The combined circular part is automatically welded through the robot assembly, the L-shaped positioner, the automatic clamp and the cold liquid circulation equipment, and therefore the purpose of improving the welding efficiency is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent manufacturing, and in particular relates to a combined circular component welding 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 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 parts are modified aluminum alloy forged parts, which are composed of several parts such as a circular rim, a circular body, and a circular bushing body. They are tightened and fixed with special high-strength bolts and glued. Although this kind of circular 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 the circular 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 rhythm is slow, and the efficiency is low. There are safety risks in ensuring vehicle safety and improving vehicle performance. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a combined circular component welding device, which at least partially solves the problems of slow production cycle and low efficiency existing in the prior art.

[0005] The embodiment of the present invention provides a combined circular component welding device, comprising: a robot assembly, an L-shaped positioner, an automatic clamp, a cold liquid circulation device and a welding power source, wherein the automatic clamping device is installed on the L-shaped positioner;

[0006] The automated fixture is used to clamp the modular circular component;

[0007] The L-shaped positioner is used to flip the automated fixture during the welding production process;

[0008] The robot assembly includes a robotic water-cooled welding gun for welding modular circular components;

[0009] The welding power source is connected to the robot water-cooled welding gun, the cold liquid circulation device is connected to the robot water-cooled welding gun and the cold plate liquid cooling device, and the cold liquid circulation device pumps the coolant into the robot water-cooled welding gun and the cold plate liquid cooling device.

[0010] Optional equipment also includes welding wire cleaning device, barreled welding wire, welding protection room, fast safety door, electric control and smoke and dust collection equipment;

[0011] The robot assembly, L-shaped positioner, automated fixture, cold liquid circulation equipment, welding power supply and barreled welding wire are all arranged in a welding protection room, the rapid safety door is arranged on the welding protection room, the barreled welding wire provides welding wire for the robot's water-cooled welding gun, the electric control is arranged outside the welding protection room, the electric control is used to control the electrical system of the welding equipment, and the smoke and dust collection equipment is installed on the top of the welding protection room.

[0012] Optionally, the robot assembly includes: a robot, a robot foot, a robot base, a robot water-cooled welding gun, a welding wire cleaning device bracket and a welding wire cleaning device;

[0013] The robot anchor bolts are fixed on the ground, the robot anchors are connected to the robot base through square tubes, the robot is installed on the robot base, and the robot water-cooled welding gun is arranged on the robot;

[0014] The welding wire cleaning device bracket is installed on one side of the square tube, and the welding wire cleaning device is installed on the welding wire cleaning device bracket.

[0015] Optionally, the robot drives the robot water-cooled welding gun to adopt a double-pulse welding process.

[0016] Optionally, the L-shaped positioner comprises: a base, a main beam mounting base plate, a main beam support body, a main beam inspection cover plate, a driven beam support body, an end beam support body, a driven beam inspection cover plate and a driven beam flange;

[0017] The base is fixed on the ground, the main beam mounting base plate is mounted on the base, the main beam support body is connected to the main beam mounting base plate, and the main beam maintenance cover plate is mounted on the main beam support body;

[0018] The driven beam flange is connected to the main beam support body, one side of the driven beam support body is connected to the driven beam flange, and the other side of the driven beam support body is connected to the end beam support body. A driven beam plate inspection cover is installed on the driven beam support body.

[0019] Optionally, an active beam transmission and gear clearance elimination structure is arranged in the main beam support body, and the active beam transmission and gear clearance elimination structure comprises: a main beam servo motor, a main beam reducer, a main beam rotating slide plate, a main beam rotating center pin, a main beam connecting bracket, a main beam pressure spring, a main beam thread adjustment bracket, a main beam thread adjustment rod, a main beam transmission gear, a main beam gear ring, a main beam slewing support, a main beam thrust bearing and a driven beam shaft;

[0020] The main beam servo motor is fixed on the main beam rotating slide plate through the main beam reducer. The output shaft of the main beam reducer is connected to the main beam transmission gear through a cylindrical key. The main beam transmission gear is meshed with the main beam gear ring installed on the main beam slewing support. The main beam thrust bearing is installed on the main beam support body, and the driven beam shaft passes through the main beam thrust bearing.

[0021] The driven beam flange is connected to the main beam gear ring, and the main beam rotating slide is connected to the main beam support body;

[0022] The main beam rotating slide plate is connected to the main beam supporting body, the main beam rotating center pin is connected to the main beam rotating slide plate, and the main beam connecting bracket is distributed in the form of concentric circles with the main beam rotating center pin as the center;

[0023] The main beam thread adjustment bracket and the main beam support body are an integrated structure; a shoulder is provided on the main beam thread adjustment rod, a section from the shoulder to the top is a bare rod structure, and the main beam pressure spring passes through the bare rod structure of the main beam thread adjustment rod.

[0024] Optionally, an end beam transmission and gear clearance elimination structure is arranged in the end beam support body, and the end beam transmission and gear clearance elimination structure comprises: an end beam servo motor, an end beam reducer, an end beam rotating slide plate, an end beam rotating center pin, an end beam connecting bracket, an end beam pressure spring, an end beam thread adjustment bracket, an end beam thread adjustment rod, an end beam transmission gear, a main beam slewing support, an end beam gear ring, a conductive carbon brush and a bearing turntable;

[0025] The end beam servo motor is fixed on the end beam rotating slide plate through the end beam reducer, the end beam reducer output shaft is connected to the end beam transmission gear, and the end beam transmission gear is meshed with the end beam gear ring installed on the main beam slewing support;

[0026] The end beam rotating slide plate is connected to the end beam supporting body, the end beam rotating center pin is connected to the end beam rotating slide plate, and the end beam connecting bracket is distributed in the form of concentric circles with the end beam rotating center pin as the center;

[0027] The end beam thread adjustment bracket and the end beam support body are an integrated structure. There is a shoulder on the end beam thread adjustment rod. The section from the shoulder to the top is a bare rod structure. The end beam pressure spring passes through the bare rod structure of the end beam thread adjustment rod. One end of the end beam pressure spring rests on the shoulder of the end beam thread adjustment rod, and the other end of the end beam pressure spring rests on the shoulder plate of the end beam rotating slide plate. The load-bearing turntable is connected to the end beam gear ring, and the conductive carbon brush is installed inside the load-bearing turntable.

[0028] Optionally, the automatic clamping device comprises:

[0029] Base plate, I pillar, II pillar, III pillar, IIII pillar, I guide slider, II guide slider, III guide slider, IIII guide slider, device center axis, center swing arm, I connecting rod, II connecting rod, I connecting rod pin, II connecting rod pin, I profiling part, II profiling part, I cold plate type liquid cooling device, II cold plate type liquid cooling device, I swing arm cylinder, II swing arm cylinder, I linear guide, II linear guide, III linear guide, IIII linear guide, I clamping cylinder, II clamping cylinder, III clamping cylinder, IIII clamping cylinder, I cylinder support and II cylinder support;

[0030] The base plate is fixed on the carrying turntable, and pillars I, II, III and IIII are symmetrically installed on the base plate, and the central axis of the device is installed on the center point of the base plate;

[0031] The I pillar is equipped with an I guide rail slider, the II pillar is equipped with an II guide rail slider, the III pillar is equipped with a III guide rail slider, and the IIII pillar is equipped with an IIII guide rail slider;

[0032] A central swing arm is installed on the central axis of the device, one end of the central swing arm is connected to the I connecting rod, the other end of the central swing arm is connected to the II connecting rod, the I swing arm cylinder is connected to the base plate through the I cylinder support, the cylinder rod end of the I swing arm cylinder is connected to one side of the central swing arm through a cylinder movable joint, the II swing arm cylinder is connected to the base plate through the II cylinder support, and the cylinder rod end of the II swing arm cylinder is connected to the other side of the central swing arm through a cylinder movable joint;

[0033] The I connecting rod is connected to the I profiling member through the I connecting rod pin shaft, the I profiling member is provided with an I cold plate type liquid cooling device, the I linear guide and the II linear guide are provided below the I profiling member, the II connecting rod is connected to the II profiling member through the II connecting rod pin shaft, the II cold plate type liquid cooling device is provided above the II profiling member, and the III linear guide and the IIII linear guide are provided below the II profiling member;

[0034] The I clamping jaw cylinder, the II clamping jaw cylinder, the III clamping jaw cylinder and the IIII clamping jaw cylinder are all arranged on the base plate.

[0035] Optionally, the I clamping jaw cylinder, II clamping jaw cylinder, III clamping jaw cylinder and IIII clamping jaw cylinder are all rotary cylinders, and contoured clamping jaws are installed on the rotating arms of the rotary cylinders.

[0036] Optionally, the cooling liquid of the cold liquid circulation device flows into the I cold plate type liquid cooling device and the II cold plate type liquid cooling device.

[0037] The combined circular component welding equipment provided by the present invention automatically welds the combined circular components through a robot assembly, an L-shaped positioner, an automatic fixture and a cold liquid circulation device, thereby achieving the purpose of improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0039] Figure 1 A schematic diagram of a combined circular component welding device is shown;

[0040] Figure 2 A layout diagram of a combined circular component welding device is shown;

[0041] Figure 3 A robot device structure diagram of a combined circular component welding device is shown;

[0042] Figure 4 Shows a layout diagram of an L-shaped positioner and automated fixture for a combined circular component welding device;

[0043] Figure 5 It shows a main beam transmission and gear clearance elimination structure diagram of an L-shaped positioner of a combined circular component welding equipment;

[0044] Figure 6 It shows a structure diagram of the end beam transmission and gear clearance elimination of an L-shaped positioner of a combined circular component welding equipment;

[0045] Figure 7 A structural diagram of an automatic clamping device for combined circular component welding equipment is shown;

[0046] Figure 8 A schematic diagram of assembling a combined circular component of a combined circular component welding device is shown;

[0047] Fig. 9 A schematic diagram of the welding state of a combined circular component of a combined circular component welding device is shown. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0049] It should be clear that the following embodiments of the present invention are described by specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present invention.

[0050] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. It should be understood by those skilled in the art based on the invention that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0051] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0052] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0053] like Figure 1 and Figure 2 As shown, a combined circular component welding device comprises: a robot assembly, an L-shaped positioner, an automatic clamp, a cold liquid circulation device and a welding power source, wherein the automatic clamping device is installed on the L-shaped positioner;

[0054] The automated fixture is used to clamp the modular circular component;

[0055] The L-shaped positioner is used to flip the automated fixture during the welding production process;

[0056] The robot assembly includes a robotic water-cooled welding gun for welding modular circular components;

[0057] The welding power source is connected to the robot water-cooled welding gun, the cold liquid circulation device is connected to the robot water-cooled welding gun and the cold plate liquid cooling device, and the cold liquid circulation device pumps the coolant into the robot water-cooled welding gun and the cold plate liquid cooling device.

[0058] The cold plate type liquid cooling device comprises a I cold plate type liquid cooling device 417 and a II cold plate type liquid cooling device 418.

[0059] Optional equipment also includes welding wire cleaning device, barreled welding wire, welding protection room, fast safety door, electric control and smoke and dust collection equipment;

[0060] The robot assembly, L-shaped positioner, automated fixture, cold liquid circulation equipment, welding power supply and barreled welding wire are all arranged in a welding protection room, the rapid safety door is arranged on the welding protection room, the barreled welding wire provides welding wire for the robot's water-cooled welding gun, the electric control is arranged outside the welding protection room, the electric control is used to control the electrical system of the welding equipment, and the smoke and dust collection equipment is installed on the top of the welding protection room.

[0061] It consists of robot 1, welding wire cleaning device 2, L-type positioner 3, automatic fixture 4, combined circular component 5, cold liquid circulation equipment 6, welding power supply 7, barreled welding wire 8, welding protection room 9, fast safety door 10, electric control part 11, smoke and dust collection equipment 12, etc. It is equipped with supporting facilities such as welding dust removal pipeline, welding explosion-proof lighting, welding protective gas, cold liquid circulation system, etc.

[0062] When the fast safety door of the welding protection room is opened, the robot stops working. It is also equipped with a safety indicator light prompt function. A two-way three-dimensional safety light curtain is set at the manual operation position to effectively protect the operator's safety. This equipment also has multiple emergency stop buttons installed on the robot control box panel and the safety door control panel, which is convenient for operators to operate when an abnormality occurs. It ensures that the robot will not automatically start when the operator presses the emergency stop button.

[0063] like Figure 3 Shown is a structural diagram of a robot device of a combined circular component welding equipment.

[0064] It mainly includes: a robot 1, a robot foot 101, a robot base 102, a robot water-cooled welding gun 103, a welding wire cleaning device bracket 201, and a welding wire cleaning device 2.

[0065] The robot anchor 101 is fixed to the ground through chemical anchor bolts. The robot anchor 101 is connected to the robot base 102 through a high-strength hollow rear wall square tube. The robot 1 is installed on the robot base 102 .

[0066] The welding wire cleaning device bracket 201 is installed on one side of the high-strength rear wall square tube, and the welding wire cleaning device 2 is installed on the welding wire cleaning device bracket 201.

[0067] The robot's cables, welding gun cables, wire feeding cables, water cooling pipelines, etc. are all connected to the control cabinet, welding power supply, cooling liquid circulation equipment and other equipment through the hollow rear wall square tube under the robot base 102 and the laying of cable troughs.

[0068] like Figure 4 As shown, a layout diagram of an L-shaped positioner and automated fixture for a combined circular component welding device.

[0069] The L-shaped positioner mainly includes: a base 301, a main beam mounting base plate 302, a main beam support body 303, a main beam inspection cover plate 304, a driven beam support body 321, an end beam support body 322, a driven beam inspection cover plate 323, and a driven beam flange 324.

[0070] The automated fixture part mainly includes: an automated fixture 4 and a combined circular component 5.

[0071] The base 301 is provided with a plurality of adjustment bolts for adjusting the base. The base 301 is fixed to the ground through a plurality of chemical anchor bolts, and the base body 301 is always kept in a horizontal state by adjusting the plurality of adjustment bolts.

[0072] The main beam mounting base plate 302 is mounted on the base 301 by high-strength bolts. The main beam support body 303 is connected to the main beam mounting base plate 302, and a main beam inspection cover plate 304 is mounted on the main beam support body 303.

[0073] One side of the driven beam support body 321 is connected to the driven beam flange 324. The other side of the driven beam support body 321 is connected to the end beam support body 322. A driven beam plate inspection cover 323 is installed on the driven beam support body 321.

[0074] To facilitate lifting and installation, two lifting rings are installed on the main beam support body 303 and the driven beam support body 321 respectively.

[0075] like Figure 5 As shown, a structure diagram of the active beam transmission and gear clearance elimination of an L-shaped positioner of a combined circular component welding equipment.

[0076] It includes: a main beam servo motor 304, a main beam reducer 305, a main beam rotating slide plate 306, a main beam rotating center pin 307, a main beam connecting bracket 308, a main beam pressure spring 309, a main beam thread adjustment bracket 310, a main beam thread adjustment rod 311, a main beam transmission gear (not shown), a main beam gear ring 313, a main beam slewing support 314, a main beam thrust bearing 315, and a driven beam shaft 316.

[0077] The main beam servo motor 304 is fixed on the main beam rotating slide 306 through the main beam reducer 305, and makes a small movement with the main beam rotating slide 306. The output shaft of the main beam reducer 305 is connected to the main beam transmission gear through a cylindrical key. The rotation of the main beam servo motor 304 drives the main beam transmission gear to engage with the main beam gear ring 313 installed on the main beam slewing support 314. The main beam thrust bearing 315 is installed on the main beam support body 303, and the driven beam shaft 316 passes through the main beam thrust bearing 315, which can realize the rotational balance and stable support system of the driven beam support body 321, so that the weight of the driven beam support body 321 and the end beam support body 322 can be supported. It has the remarkable characteristics of high load capacity and large bearing stiffness.

[0078] The driven beam support body 321 is connected to the driven beam flange 324 through high-strength bolts, and the driven beam flange 324 is connected to the main beam gear ring 313 through high-strength bolts. The rotation of the main beam gear ring 313 drives the driven beam support body 321 to rotate.

[0079] The main beam rotating slide plate 306 is bolted to the main beam support body 303 through three main beam connecting brackets 308. The connecting holes between the main beam rotating slide plate 306 and the three main beam connecting brackets 308 are all elliptical long holes, and the connecting hole between the main beam rotating slide plate 306 and the main beam rotating center pin 307 is a perfect circular hole. The three main beam connecting brackets 308 are distributed in the form of concentric circles with the main beam rotating center pin 307 as the center. The main beam rotating slide plate 306 can perform slight rotation with the main beam rotating center pin 307 as the rotation center.

[0080] The main beam thread adjustment bracket 310 and the main beam support body 303 are an integrated structure. There is a shoulder on the main beam thread adjustment rod 311, and the shoulder is a bare rod structure toward the top to facilitate the main beam pressure spring 309 to pass through the bare rod of the main beam thread adjustment rod 311. The shoulder is an external thread structure toward the tail end to facilitate connection with the internal thread structure on the main beam thread adjustment bracket 310. The main beam thread adjustment bracket 310 adopts an internal thread structure coaxially arranged with the main beam thread adjustment rod 311, so that the internal thread of the main beam thread adjustment bracket 310 can be matched and connected with the external thread of the main beam thread adjustment rod 311.

[0081] More specifically, one side of the main beam rotating slide plate 306 is welded to the rotating slide plate shoulder plate. The main beam thread adjustment bracket 310 is welded to the back plate of the main beam support body 303. The main beam thread adjustment bracket 310 is a rear-mounted design, which is more conducive to the stability of the structure and will never cause thread slippage. The main beam pressure spring 309 penetrates the bare rod of the main beam thread adjustment rod 311. One end of the main beam pressure spring 309 rests on the shoulder of the main beam thread adjustment rod 311, and the other end of the main beam pressure spring 309 rests on the rotating slide plate shoulder plate of the main beam rotating slide plate 306. The external thread of the main beam thread adjustment rod 311 shoulder to the tail end is matched with the internal thread of the main beam thread adjustment bracket 310. The main beam thread adjustment rod 311 is an external hexagonal rod, which is used to apply external force to rotate the main beam thread adjustment rod 311 relative to the main beam thread adjustment bracket 310. The pressure on the main beam pressure spring 309 is adjusted by using the shoulder between the top and the tail of the main beam thread adjustment rod 311. The main beam pressure spring 309 is compressed and released by rotating the main beam threaded adjustment rod 311, so that the pressure of the main beam pressure spring 309 is adjusted, so that the main beam pressure spring 309 always supports the rotating slide shoulder plate. The main beam pressure spring 309 can press the rotating slide shoulder plate with the pressure of the rotating slide shoulder plate, so that the circular hole of the main beam rotating slide plate 306, which is integrally formed with the rotating slide shoulder plate, can be pivoted around the main beam rotating center pin 307, and at the same time, the elliptical long holes of the main beam rotating slide plate 306 are respectively slid relative to the three main beam connecting brackets 308, so that the main beam rotating slide plate 306 is allowed to pivot while ensuring the support of the three main beam connecting brackets 308, and the pressure distribution during the pivoting can be effectively dispersed.

[0082] The number of teeth on the main beam gear ring 313 is a multiple of the number of teeth on the main beam transmission gear. The modulus of the main beam gear ring 313 is calculated, and the pressure angle of the main beam gear ring 313 is controlled at 20 degrees. Under the pressure of the main beam pressure spring 309, the elastic force for the main beam rotating slide 306 to rotate slightly is continuously provided, and the main beam rotating slide 306 drives the main beam transmission gear to mesh closely with the main beam gear ring 313 installed on the main beam slewing support 314, always keeping the main beam transmission gear and the main beam gear ring 313 closely meshed without gap, effectively eliminating the meshing gear gap between the main beam transmission gear and the main beam gear ring 313.

[0083] like Figure 6 As shown, a structure diagram of the end beam transmission and gear clearance elimination of an L-shaped positioner of a combined circular component welding equipment.

[0084] It includes: an end beam servo motor 325, an end beam reducer 326, an end beam rotating slide plate 327, an end beam rotating center pin (not shown), an end beam connecting bracket 329, an end beam pressure spring 330, an end beam thread adjustment bracket 331, an end beam thread adjustment rod 332, an end beam transmission gear (not shown), a main beam slewing support 334, an end beam gear ring 335, a conductive carbon brush 336, and a bearing turntable 337.

[0085] The end beam servo motor 325 is fixed on the end beam rotating slide 327 through the end beam reducer 326, and makes small movements with the end beam rotating slide 327. The output shaft of the end beam reducer 326 is connected to the end beam transmission gear through a cylindrical key. The rotation of the end beam servo motor 325 drives the end beam transmission gear to engage with the end beam gear ring 335 installed on the main beam rotating support 334.

[0086] The end beam rotating slide plate 327 is bolted to the end beam support body 322 through three end beam connecting brackets 329. The connecting holes between the end beam rotating slide plate 327 and the three end beam connecting brackets 329 are all elliptical long holes, and the connecting hole between the end beam rotating slide plate 327 and the end beam rotating center pin is a perfect circular hole. The three end beam connecting brackets 329 are distributed in the form of concentric circles with the end beam rotating center pin as the center. The end beam rotating slide plate 327 can perform slight rotation with the main beam rotating center pin as the rotation center.

[0087] The end beam thread adjustment bracket 331 and the end beam support body 322 are an integrated structure. There is a shoulder on the end beam thread adjustment rod 332, and the shoulder is a polished rod structure toward the top to facilitate the end beam pressure spring 330 to pass through the polished rod of the end beam thread adjustment rod 332. The shoulder is an external thread structure toward the tail end to facilitate connection with the internal thread structure on the end beam thread adjustment bracket 331. One end of the end beam pressure spring 330 is against the shoulder of the end beam thread adjustment rod 332, and the other end of the end beam pressure spring 330 is against the shoulder plate of the end beam rotating slide plate 327.

[0088] The end beam thread adjustment bracket 331 adopts an internal thread structure coaxially arranged with the end beam thread adjustment rod 332 , so that the internal thread of the end beam thread adjustment bracket 331 can be matched and connected with the external thread of the beam thread adjustment rod 332 .

[0089] The end beam rotating slide plate 327 can make a slight rotation around the rotating center pin. Under the continuous pressure of the end beam pressure spring 330, the slight rotation of the end beam rotating slide plate 327 will drive the end beam transmission gear to change position. Since the end beam transmission gear changes position, the center distance between the end beam transmission gear and the end beam gear ring 335 is changed. The offset of the gear center distance can cause the spiral line of the end beam transmission gear and the end beam gear ring 335 to be misaligned, thereby changing the tooth side clearance between the end beam transmission gear and the end beam gear ring 335, thereby effectively avoiding point-to-surface contact between gears, reducing gear backlash, and achieving the purpose of adjustment. When the minimum number of teeth of the end beam transmission gear is set to 17, the highest adjustment accuracy can be achieved. The number of teeth of the end beam gear ring 335 is a multiple of the number of teeth of the end beam transmission gear.

[0090] The bearing turntable 337 is connected to the end beam gear ring 335 by high-strength bolts. When the end beam servo motor 325 rotates, the end beam transmission gear is driven to mesh with the end beam gear ring 335 installed on the main beam slewing support 334 to rotate. The rotation of the end beam gear ring 335 drives the bearing turntable 337 to rotate stably to improve the bearing capacity.

[0091] This design consists of an adjustment mechanism consisting of a pressure spring, a threaded adjustment rod, and a threaded adjustment bracket. It has a simple structure, is easy to adjust, and has low requirements for the processing of the workpiece. It can be processed by conventional mechanical processing methods, and the processing cost and maintenance cost are relatively low, making it suitable for workshop production promotion.

[0092] The end beam thread adjustment bracket 331 also adopts a post-positioned design, and the thread slippage phenomenon will never occur, thereby ensuring that the end beam transmission gear and the end beam gear ring 335 are always closely meshed without gaps, and effectively eliminating the meshing gear gap between the end beam transmission gear and the end beam gear ring 335.

[0093] The conductive carbon brush 336 is installed inside the bearing turntable 337. A pressure plate spring is installed on the conductive carbon brush 336. Under the pressure of the pressure plate spring, the conductive carbon brush 336 contacts the inner side of the bearing turntable 337. The conductive copper wire of the conductive carbon brush 336 is connected to the common end of the welding power source 7. During the welding process, the welding current can flow into the conductive copper wire of the conductive carbon brush 336, avoiding robot failure and servo motor failure caused by the welding current.

[0094] like Figure 7 Shown is a structural diagram of an automatic clamping device for combined circular component welding equipment.

[0095] The device mainly includes: a base plate 400, an I pillar 401, an II pillar 402, a III pillar 403, an IIII pillar 404, an I guide slider 405, an II guide slider (not shown), an III guide slider (not shown), an IIII guide slider 408, a device center axis 409, a center swing arm 410, an I connecting rod 411, an II connecting rod 412, an I connecting rod pin 413, an II connecting rod pin 414, an I profiling member 415, and an II profiling member 416, I cold plate type liquid cooling device 417, II cold plate type liquid cooling device 418, I swing arm cylinder 419, II swing arm cylinder 420, I linear guide 421, II linear guide (not shown), III linear guide (not shown), IIII linear guide 424, I clamp cylinder 425, II clamp cylinder 426, III clamp cylinder 427, IIII clamp cylinder 428, I cylinder support 429, II cylinder support 430.

[0096] The base plate 400 is fixed on the bearing turntable 337 by bolts. The base plate 400 is symmetrically mounted with I pillars 401, II pillars 402, III pillars 403, and IIII pillars 404. The center point of the base plate 400 is mounted with a device center axis 409.

[0097] An I guide rail slider 405 is installed on the I pillar 401, an II guide rail slider is installed on the II pillar 402, a III guide rail slider is installed on the III pillar 403, and an IIII guide rail slider 408 is installed on the IIII pillar 404.

[0098] A central swing arm 410 is mounted on the central axis 409 of the device. One end of the central swing arm 410 is connected to the I connecting rod 411. The other end of the central swing arm 410 is connected to the II connecting rod 412. The I swing arm cylinder 419 is connected to the base plate 400 through the I cylinder support 429, and the cylinder rod end of the I swing arm cylinder 419 is connected to one side of the central swing arm 410 through a cylinder movable joint. The II swing arm cylinder 420 is connected to the base plate 400 through the II cylinder support 430, and the cylinder rod end of the II swing arm cylinder 420 is connected to the other side of the central swing arm 410 through a cylinder movable joint.

[0099] The I connecting rod 411 is connected to the I profiling member 415 through the I connecting rod pin 413. The I profiling member 415 is provided with an I cold plate type liquid cooling device 417, and the I linear guide 421 and the II linear guide are provided below the I profiling member 415. The II connecting rod 412 is connected to the II profiling member 416 through the II connecting rod pin 414. The II profiling member 416 is provided with an II cold plate type liquid cooling device 418, and the II linear guide 424 and the IIII linear guide are provided below the II profiling member 416.

[0100] The I guide slider 405 cooperates with the I linear guide 421, the II guide slider cooperates with the II linear guide, the III guide slider cooperates with the III linear guide, and the IIII guide slider 408 cooperates with the IIII linear guide 424. The extension and retraction of the cylinder rods of the I swing arm cylinder 419 and the II swing arm cylinder 420 drive the central swing arm 410, the I connecting rod 411, and the II connecting rod 412 to move synchronously in relative directions with the device center axis 409 as the center. At the same time, the I profiling member 415 is driven by the I connecting rod pin 413 to slide parallel to the I linear guide 421 and the II linear guide 422 through the I guide slider 405 and the II guide slider 406. The II profiling member 416 is driven by the II connecting rod pin 414 to slide parallel to the III linear guide 423 and the IIII linear guide 424 through the III guide slider 407 and the IIII guide slider 408. The I profiling member 415 and the II profiling member 416 are automatically opened and closed.

[0101] When the I-shaped member 415 and the II-shaped member 416 are horizontally moved and completely closed, the I-cold plate type liquid cooling device 417 and the II-cold plate type liquid cooling device 418 are in a smooth sealed closed state. The coolant can flow freely into the I-cold plate type liquid cooling device 417 and the II-cold plate type liquid cooling device 418, and the coolant circulates. At the same time, the bodies of the I-cold plate type liquid cooling device 417 and the II-cold plate type liquid cooling device 418 are made of copper and have extremely high thermal conductivity.

[0102] I clamping jaw cylinder 425, II clamping jaw cylinder 426, III clamping jaw cylinder 427, and IIII clamping jaw cylinder 428 are all rotary cylinders, and contour clamping jaws are installed on the rotating arms of the rotary cylinders. When the cylinder solenoid valve is energized, the compressed air guides the cylinder piston to perform linear reciprocating motion, and the clamping jaw cylinder moves and rotates 90 degrees with the axis of the cylinder as the center point, making the clamping jaw operation more stable.

[0103] like Figure 8 Shown is a schematic diagram of assembling a combined circular component of a combined circular component welding device.

[0104] The circular web 501 is pressed into the heat-expanded circular rim 502 , and the circular rim and the circular web are kept in interference fit. The bottom edge 503 of the circular web serves as the weld connection between the circular web 501 and the circular rim 502 .

[0105] like Fig. 9 Shown is a schematic diagram of the welding state of a combined circular component of a combined circular component welding device.

[0106] The automatic clamping device is installed on the L-shaped positioner, the robot is installed on one side of the L-shaped positioner, the robot feet 101 and the L-shaped positioner base 301 are fixed to the ground by chemical anchors, and the robot, L-shaped positioner, automatic clamping device, welding power supply, cooling liquid circulation equipment, etc. are operating normally.

[0107] The automatic clamping device is opened, and the circular web-shaped body 501 is pressed into the heat-expanded circular rim-shaped body 502, and the combined circular component that keeps the circular rim-shaped body and the circular web-shaped body in interference fit is turned over and clamped on the automatic clamping device.

[0108] The automatic clamping device is closed, the I profiling member 415 and the II profiling member 416 move horizontally to completely clamp the circular rim-shaped body 502, the I cold plate type liquid cooling device 417 and the II cold plate type liquid cooling device 418 are in a smooth, sealed and closed state, and the annular cold plate type liquid cooling device is tightly fitted to the position of the bottom edge 503 of the circular radial body, which is the weld connection between the tightly combined circular radial body 501 and the circular rim-shaped body 502.

[0109] The L-type positioner is coordinated and controlled by the program system, which can realize the coordinated rotation of the servo motors of the main beam and the end beam, and greatly meet the requirements of the flip angle of the automatic clamping device in the welding production process, making the welding operation of combined circular parts easier and simpler, ensuring the integrity and reliability of the welding structure, while having higher welding quality, stronger practical promotion, and suitable for batch production in workshops.

[0110] According to a combined circular component welding device of the present invention, a specific operation process example is as follows.

[0111] First, through the touch screen window of the electronic control part 11, set the initialization detection position signal and the protection function detection signal, set the welding material model, the cleaning gun and wire cutting beat, the robot initial position, the L-type positioner initial position, set the job number of the selected welding program, set the real-time coolant flow, set the real-time protective gas pressure and other parameters. At the same time, it provides functions such as cumulative production counting and equipment failure alarm information.

[0112] The L-shaped positioner 3 drives the main beam gear ring 313 to rotate through the main beam servo motor 304, driving the driven beam and the end beam to a predetermined relative horizontal position. The program control can make the I profiling member 415 and the II profiling member 416 of the automatic clamping device 4 move horizontally and fully open, which is convenient for operators to load materials.

[0113] After the loading is completed, the operator presses the equipment start button, and the program control can make the I profiling member 415 and the II profiling member 416 of the automatic clamping device 4 move horizontally and completely close, automatically clamp the combined circular component 5, and the I cold plate liquid cooling device 417 and the II cold plate liquid cooling device 418 are in a smooth sealed closed state, and the annular cold plate liquid cooling device is closely attached to the position of the bottom edge 503 of the circular radial body. The welding power supply is started, the protection function is started, the robot is started, the cold liquid circulation device is started, and the protective gas pressure monitoring is started.

[0114] The cooling liquid circulation device 6 pumps the cooling liquid into the robot water-cooled welding gun 103, the I cold plate type liquid cooling device 417, and the II cold plate type liquid cooling device 418, and the cooling liquid starts to circulate.

[0115] The L-shaped positioner 3 rotates the main beam servo motor 304 and the end beam servo motor 325, driving the bearing turntable 337 and the automatic fixture 4 to rotate and change the angle, rotating the combined circular component 5 to the best welding position, and the robot performs automatic welding. The protective room is in a closed working environment, with an explosion-proof dust removal system to avoid welding fume pollution.

[0116] At this time, the equipment program controls the L-shaped positioner 3 to cooperate with the robot 1 in the gun angle, and always maintains the best welding angle between the weld joint 503 of the combined circular component 5 and the robot's water-cooled welding gun 103. The equipment program controls the robot to automatically cut and feed wires, automatically open or close the cold liquid circulation device 6, and automatically open or close the protective gas. This enables efficient welding operations, improves production efficiency, and improves product consistency.

[0117] After welding is completed, the robot 1 returns to the initial position. The L-shaped positioner 3 drives the bearing turntable 337 and the automatic clamp 4 to rotate to a safe position. The program control can make the I profiling member 415 and the II profiling member 416 of the automatic clamping device 4 move horizontally and fully open, take out the welded combined circular component 5, and start a new round of welding operation.

[0118] The equipment program system monitors the operation of each process equipment in real time to ensure that the coolant pressure, protective air pressure value, robot water-cooled welding gun temperature, I cold plate liquid cooling device, II cold plate liquid cooling device temperature, wire feeding resistance, wire drawing frequency and other important operation values ​​are within the reasonable range of the set value, the equipment has no error alarm information, and the welding process is continuous without interruption and alarm. Through the above logical actions, information storage and traceability can be completed, and the outflow of waste can be effectively avoided.

[0119] The circular rim-shaped body part can be shared, and different shapes can be changed by simply replacing the circular web-shaped bodies of different styles and sizes, which is very convenient.

[0120] The following is an example of two combined circular components, which includes the following steps: placing a circular rim-shaped body in a heating and insulation furnace, and stopping heating after the heating and insulation furnace is heated to 200-250°C, and keeping warm for a predetermined time so that the surface temperature of the circular rim-shaped body is not lower than 200°C after being taken out of the furnace, and at the same time using a mechanical gripper to clamp the heated circular rim-shaped body, placing it on a combined circular component automatic pressing device, and pressing the circular web-shaped body into the circular rim-shaped body, maintaining an interference fit between the circular rim-shaped body and the circular web-shaped body, and as the temperature of the circular rim-shaped body slowly drops to room temperature, the circular rim-shaped body and the circular web-shaped body are tightly combined together. Then, a mechanical gripper is used to clamp the tightly combined circular rim-shaped body and circular rib-shaped body and place them on a cold liquid cooling automatic fixture of a combined circular welding device provided by the present invention. The swing arm cylinder drives the swing arm, connecting rod and profiling parts to automatically center and clamp them. The multiple clamping claw cylinders rotate to lock the circular rim-shaped body. The robot automatic welding device is started to perform circular ring welding on the tightly combined part 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 cooling liquid is used to cool the welding position and take away the heat generated by welding, thereby maintaining a stable temperature during the welding process.

[0121] The L-type positioner includes: a main beam, a driven beam connected to one end of the main beam, an end beam, a gear transmission and a gear backlash elimination mechanism and a servo motor for the main beam, and a bearing turntable gear transmission and a gear backlash elimination mechanism and a servo motor for one end of the end beam.

[0122] The automatic clamping device is installed on the rotating tray of the load-bearing beam. The automatic clamping device adopts a symmetrical mirroring method of mechanical structure, including: the device center axis and center swing arm, connecting rod and connecting rod pin, profiling parts and cold plate type liquid cooling device, swing arm cylinder and clamping claw cylinder.

[0123] The combined circular component welding equipment is equipped with a robot, which can select different welding programs to achieve corresponding welding operations based on two-piece, three-piece, and combined circular components.

[0124] The combined circular component welding equipment is equipped with an automatic clamping device for cooling with cold liquid on the matching L-shaped positioner end beam bearing beam turntable.

[0125] During the welding process, the robot water-cooled welding gun is not only cooled by circulating coolant. The coolant is transported to the hot part of the gun neck through the cold liquid circulation system, and the heat of the robot water-cooled welding gun is absorbed and then transported back to the cold liquid tank for cooling. The welding position is also cooled by circulating coolant, which effectively prevents the defects of 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 layer penetration, poor base material connection, unfusion, bubbles, inclusions, weld layer cracking, layered tearing, peeling, and weld deviation at the end face of the weld. And it is highly efficient and can reach a temporary load rate of 100%. It is durable and has good heat dissipation.

[0126] The robot drives the robot water-cooled welding gun to adopt a double pulse welding process with low heat input, no welding slag and no spatter. The melting droplet of the welding wire, the transition of the welding droplet and the movement of the welding wire withdrawal greatly expand the scope of welding application, especially when adding specific pulses for the combined circular welding equipment, the predetermined pulse current, voltage and number of times increase the penetration depth and arc stability, and pulse high-melting welding is performed on the close combination of the combined circular rim and the circular body. The welding heat input is low, the dissolution efficiency is high, the weld is beautiful, the deformation and stress during the welding process are reduced, and a good weld transition is guaranteed to ensure the mechanical properties and stability of the welding area.

[0127] The basic principle of the present invention is described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, strengths, effects, etc. mentioned in the present invention are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. must be possessed by each embodiment of the present invention. In addition, the specific details disclosed above are only for the purpose of illustration and facilitation of understanding, rather than limitation, and the above details do not limit the present invention to being implemented by adopting the above specific details.

[0128] In the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Words such as "including", "comprising", "having", etc. are open words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0129] Additionally, as used herein, "or" used in a list of items beginning with "at least one" indicates a separate list, so that, for example, a list of "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the example described is preferred or better than other examples.

[0130] It should also be noted that in the system and method of the present invention, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present invention.

[0131] Various changes, substitutions, and modifications of the techniques described herein may be made without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of the present invention is not limited to the specific aspects of the processes, machines, manufactures, compositions of events, means, methods, and actions described above. Currently existing or later to be developed processes, machines, manufactures, compositions of events, means, methods, or actions that perform substantially the same functions or achieve substantially the same results as the corresponding aspects described herein may be utilized. Thus, the appended claims include such processes, machines, manufactures, compositions of events, means, methods, or actions within their scope.

[0132] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0133] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A combined circular component welding device, characterized in that: include: A robot assembly, an L-shaped positioner, an automated fixture, a cold liquid circulation device, and a welding power source, wherein the automatic clamping device is installed on the L-shaped positioner; The automated fixture is used to clamp the modular circular component; The L-shaped positioner is used to flip the automated fixture during the welding production process; The robot assembly includes a robotic water-cooled welding gun for welding modular circular components; The welding power source is connected to the robot water-cooled welding gun, the cold liquid circulation device is connected to the robot water-cooled welding gun and the cold plate liquid cooling device, and the cold liquid circulation device pumps the coolant into the robot water-cooled welding gun and the cold plate liquid cooling device.

2. The combined circular component welding equipment according to claim 1, characterized in that: It also includes welding wire cleaning equipment, barreled welding wire, welding protection room, fast safety door, electric control and smoke and dust collection equipment; The robot assembly, L-shaped positioner, automated fixture, cold liquid circulation equipment, welding power supply and barreled welding wire are all arranged in a welding protection room, the rapid safety door is arranged on the welding protection room, the barreled welding wire provides welding wire for the robot's water-cooled welding gun, the electric control is arranged outside the welding protection room, the electric control is used to control the electrical system of the welding equipment, and the smoke and dust collection equipment is installed on the top of the welding protection room.

3. The combined circular component welding equipment according to claim 1, characterized in that: The robot assembly includes: a robot, a robot foot, a robot base, a robot water-cooled welding gun, a welding wire cleaning device bracket and a welding wire cleaning device; The robot anchor bolts are fixed on the ground, the robot anchors are connected to the robot base through square tubes, the robot is installed on the robot base, and the robot water-cooled welding gun is arranged on the robot; The welding wire cleaning device bracket is installed on one side of the square tube, and the welding wire cleaning device is installed on the welding wire cleaning device bracket.

4. The combined circular component welding equipment according to claim 1, characterized in that: The robot drives the robot water-cooled welding gun to adopt a double-pulse welding process.

5. The combined circular component welding equipment according to claim 1, characterized in that: The L-shaped positioner comprises: a base, a main beam mounting base plate, a main beam support body, a main beam inspection cover plate, a driven beam support body, an end beam support body, a driven beam inspection cover plate and a driven beam flange; The base is fixed on the ground, the main beam mounting base plate is mounted on the base, the main beam support body is connected to the main beam mounting base plate, and the main beam maintenance cover plate is mounted on the main beam support body; The driven beam flange is connected to the main beam support body, one side of the driven beam support body is connected to the driven beam flange, and the other side of the driven beam support body is connected to the end beam support body. A driven beam plate inspection cover is installed on the driven beam support body.

6. The combined circular component welding device according to claim 5, characterized in that: An active beam transmission and gear clearance elimination structure is arranged in the main beam support body, and the active beam transmission and gear clearance elimination structure comprises: a main beam servo motor, a main beam reducer, a main beam rotating slide plate, a main beam rotating center pin, a main beam connecting bracket, a main beam pressure spring, a main beam thread adjustment bracket, a main beam thread adjustment rod, a main beam transmission gear, a main beam gear ring, a main beam slewing support, a main beam thrust bearing and a driven beam shaft; The main beam servo motor is fixed on the main beam rotating slide plate through the main beam reducer. The output shaft of the main beam reducer is connected to the main beam transmission gear through a cylindrical key. The main beam transmission gear is meshed with the main beam gear ring installed on the main beam slewing support. The main beam thrust bearing is installed on the main beam support body, and the driven beam shaft passes through the main beam thrust bearing. The driven beam flange is connected to the main beam gear ring, and the main beam rotating slide is connected to the main beam support body; The main beam rotating slide plate is connected to the main beam supporting body, the main beam rotating center pin is connected to the main beam rotating slide plate, and the main beam connecting bracket is distributed in the form of concentric circles with the main beam rotating center pin as the center; The main beam thread adjustment bracket and the main beam support body are an integrated structure; a shoulder is provided on the main beam thread adjustment rod, a section from the shoulder to the top is a bare rod structure, and the main beam pressure spring passes through the bare rod structure of the main beam thread adjustment rod.

7. The combined circular component welding device according to claim 6, characterized in that: The end beam support body is provided with an end beam transmission and gear clearance elimination structure, which includes: an end beam servo motor, an end beam reducer, an end beam rotation slide plate, an end beam rotation center pin, an end beam connection bracket, an end beam pressure spring, an end beam thread adjustment bracket, an end beam thread adjustment rod, an end beam transmission gear, a main beam slewing support, an end beam gear ring, a conductive carbon brush and a bearing turntable; The end beam servo motor is fixed on the end beam rotating slide plate through the end beam reducer, the end beam reducer output shaft is connected to the end beam transmission gear, and the end beam transmission gear is meshed with the end beam gear ring installed on the main beam slewing support; The end beam rotating slide plate is connected to the end beam supporting body, the end beam rotating center pin is connected to the end beam rotating slide plate, and the end beam connecting bracket is distributed in the form of concentric circles with the end beam rotating center pin as the center; The end beam thread adjustment bracket and the end beam support body are an integrated structure. There is a shoulder on the end beam thread adjustment rod. The section from the shoulder to the top is a bare rod structure. The end beam pressure spring passes through the bare rod structure of the end beam thread adjustment rod. One end of the end beam pressure spring rests on the shoulder of the end beam thread adjustment rod, and the other end of the end beam pressure spring rests on the shoulder plate of the end beam rotating slide plate. The load-bearing turntable is connected to the end beam gear ring, and the conductive carbon brush is installed inside the load-bearing turntable.

8. The combined circular component welding device according to claim 7, characterized in that: The automatic clamping device comprises: Base plate, I pillar, II pillar, III pillar, IIII pillar, I guide slider, II guide slider, III guide slider, IIII guide slider, device center axis, center swing arm, I connecting rod, II connecting rod, I connecting rod pin, II connecting rod pin, I profiling part, II profiling part, I cold plate type liquid cooling device, II cold plate type liquid cooling device, I swing arm cylinder, II swing arm cylinder, I linear guide, II linear guide, III linear guide, IIII linear guide, I clamping cylinder, II clamping cylinder, III clamping cylinder, IIII clamping cylinder, I cylinder support and II cylinder support; The base plate is fixed on the carrying turntable, and pillars I, II, III and IIII are symmetrically installed on the base plate, and the central axis of the device is installed on the center point of the base plate; The I pillar is equipped with an I guide rail slider, the II pillar is equipped with an II guide rail slider, the III pillar is equipped with a III guide rail slider, and the IIII pillar is equipped with an IIII guide rail slider; A central swing arm is installed on the central axis of the device, one end of the central swing arm is connected to the I connecting rod, the other end of the central swing arm is connected to the II connecting rod, the I swing arm cylinder is connected to the base plate through the I cylinder support, the cylinder rod end of the I swing arm cylinder is connected to one side of the central swing arm through a cylinder movable joint, the II swing arm cylinder is connected to the base plate through the II cylinder support, and the cylinder rod end of the II swing arm cylinder is connected to the other side of the central swing arm through a cylinder movable joint; The I connecting rod is connected to the I profiling member through the I connecting rod pin shaft, the I profiling member is provided with an I cold plate type liquid cooling device, the I linear guide and the II linear guide are provided below the I profiling member, the II connecting rod is connected to the II profiling member through the II connecting rod pin shaft, the II cold plate type liquid cooling device is provided above the II profiling member, and the III linear guide and the IIII linear guide are provided below the II profiling member; The I clamping jaw cylinder, the II clamping jaw cylinder, the III clamping jaw cylinder and the IIII clamping jaw cylinder are all arranged on the base plate.

9. The combined circular component welding device according to claim 8, characterized in that: The I clamping jaw cylinder, II clamping jaw cylinder, III clamping jaw cylinder and IIII clamping jaw cylinder are all rotary cylinders, and the rotating arms of the rotary cylinders are provided with contoured clamping jaws.

10. The combined circular component welding device according to claim 8, characterized in that: The coolant of the cold liquid circulation device flows into the I cold plate type liquid cooling device and the II cold plate type liquid cooling device.

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