Iron frame assembly welding equipment

Abstract

The invention discloses iron frame assembly welding equipment which comprises a rack, a positioning tool, a first moving device and a second moving device are arranged on the rack, an upper laser welding head is arranged on the first moving device, a lower laser welding head is arranged on the second moving device, and the lower laser welding head is located below the positioning tool. The upper laser head is positioned above the positioning tool; the positioning tool comprises a first positioning bottom plate and a second positioning bottom plate, a first positioning backup plate and a first pressing mechanism are arranged on the first positioning bottom plate, a second positioning backup plate and a second pressing mechanism are arranged on the second positioning bottom plate, and a laser passing gap is formed between the first positioning bottom plate and the second positioning bottom plate. The mode that the upper laser welding head and the lower laser welding head conduct welding at the same time is adopted, double-side welding can be completed after primary positioning is conducted on the iron frame assembly, the trouble of secondary positioning on the iron frame assembly is omitted, the time needed for completing the primary welding task is greatly shortened, and the welding efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to an iron frame component welding equipment. Background Art

[0002] Laser welding is a welding technology that uses a laser beam as a heat source. This technology irradiates a high-energy laser beam at the joint of two workpieces, and the laser beam melts the materials at the joint of the two workpieces and fuses them together, thereby achieving welding between the two workpieces. This welding technology can be applied to the welding of a variety of materials, especially metal materials.

[0003] like Figure 13 to Figure 14 As shown, when an existing iron frame assembly is welded by laser welding technology, it is necessary to first splice two iron frame assemblies 30 together at a splicing angle of 90 degrees, and then weld along the seams of the two iron frame assemblies using the laser head on the laser welding equipment.

[0004] In order to ensure the welding strength of the two iron frame components 30, double-sided welding is required, that is, welding is required on both the upper and lower sides of the joint; the upper welding position 31 is located on the upper side of the joint of the two iron frame components 30 (such as Fig.13 As shown, the lower welding position 33 is located at the lower side of the joint between the two iron frame components 31 (as shown in FIG. Fig.14 In actual welding, the two iron frame components 30 are first positioned by the jig on the laser welding equipment so that the upper welding position 31 faces upward, and the laser welding head on the laser welding equipment first welds the upper welding position 31. After welding, the two iron frame components 31 are horizontally flipped 180 degrees, and the lower welding position 33 faces upward. Then, the two iron frame components 30 are positioned again by the jig. After positioning, the laser welding head on the laser welding equipment welds the lower welding position 33 again.

[0005] The existing welding method requires two welding operations to complete the welding task of the two iron frame components 30, which is troublesome to operate, takes a long time to weld, and has low welding efficiency. Summary of the invention

[0006] The purpose of the present invention is to solve the deficiencies in the prior art and provide an iron frame assembly welding device.

[0007] The objective of the present invention is achieved through the following technical solutions: An iron frame assembly welding device comprises a frame, a positioning tool, a first moving device and a second moving device are provided on the frame, an upper laser welding head is provided on the first moving device, a lower laser welding head is provided on the second moving device, the lower laser welding head is located below the positioning tool, and the upper laser head is located above the positioning tool; The positioning tooling comprises a first positioning base plate and a second positioning base plate. The first positioning base plate is provided with a first positioning support plate and a first clamping mechanism. The second positioning base plate is provided with a second positioning support plate and a second clamping mechanism. A laser passage gap is provided between the first positioning base plate and the second positioning base plate.

[0008] Preferably, the first moving device comprises a first horizontal linear module, a first vertical linear module is arranged on the first horizontal linear module, and the upper welding laser head is arranged on the first vertical linear module; The second moving device comprises a second horizontal linear module, a second vertical linear module is arranged on the second horizontal linear module, and the lower welding laser head is arranged on the second vertical linear module.

[0009] Preferably, a rotary drive is provided on the first vertical linear module, and the upper laser welding head is mounted on the rotary drive; the rotary drive drives the upper laser welding head to rotate in a vertical plane.

[0010] Preferably, the first clamping mechanism includes a first clamping drive cylinder arranged on the first positioning base plate, the piston rod of the first clamping drive cylinder is connected to the first pressure plate, and the first pressure plate is driven to move up and down by the first clamping drive cylinder; the second clamping mechanism includes a second clamping drive cylinder arranged on the second positioning base plate, the piston rod of the second clamping drive cylinder is connected to the second pressure plate, and the second pressure plate is driven to move up and down by the second clamping drive cylinder.

[0011] Preferably, a first protective gas outlet is provided on the first pressing plate, a first air exhaust port is provided on the second pressing plate, and the first protective gas inlet and the first air exhaust port are respectively located on both sides above the splicing position of the two iron frame components; a first protective gas channel is provided in the first pressing plate, the first protective gas outlet is connected to the first protective gas channel, and one end of the first protective gas channel is connected to the first protective gas inlet pipe; a first air exhaust channel is provided in the second pressing plate, the first air exhaust port is connected to the first air exhaust channel, and one end of the first air exhaust channel is connected to the first air exhaust pipe.

[0012] Preferably, a second protective gas outlet is provided on the first positioning base plate, a second air exhaust port is provided on the second positioning base plate, and the second protective gas inlet and the second air exhaust port are respectively located on both sides below the splicing position of the two iron frame components; a second protective gas channel is provided in the first positioning base plate, the second protective gas outlet is connected to the second protective gas channel, and one end of the second protective gas channel is connected to the second protective gas inlet pipe; a second air exhaust channel is provided in the second positioning base plate, the second air exhaust port is connected to the second air exhaust channel, and one end of the second air exhaust channel is connected to the second air exhaust pipe.

[0013] Preferably, the first positioning backing plate comprises a backing plate body and a corner positioning member, wherein one end of the backing plate body is provided with a guide groove, the corner positioning member is provided with a guide boss, the guide boss is slidably connected in the guide groove, and the corner positioning member is provided with a corner positioning groove; the backing plate body is provided with a spring connecting frame, and a spring is provided between the spring connecting frame and the corner positioning member; A lock tongue slide groove and a mounting hole are provided at one end of the back plate body close to the corner positioning piece, a lock tongue is slidably connected in the lock tongue slide groove, and a slot corresponding to the lock tongue is provided on the corner positioning piece; A heat-conducting fixing block is arranged at one end of the mounting hole, and one end of the heat-conducting fixing block is flush with the outer surface of the back plate body; a heat-reactive sheet is connected to the heat-conducting fixing block, and one end of the heat-reactive sheet is connected to the heat-conducting fixing block, and the other end of the heat-reactive sheet is connected to the lock tongue; the heat-reactive sheet is composed of a first metal layer and a second metal layer, and the second metal layer is located on a side of the first metal layer away from the corner positioning piece; the thermal expansion coefficient of the first metal layer is greater than the thermal expansion coefficient of the second metal layer; When positioning the two iron frame assemblies, the corner positioning piece is in a positioning state, one end of the two iron frame assemblies are placed in the corner positioning groove, and the heat conductive fixing block is in contact with the iron frame assembly; when the corner positioning piece is in a positioning state, the front end of the lock tongue extends into the slot on the corner positioning piece, and the spring is in a stretched energy storage state.

[0014] Preferably, a connecting groove is provided on the locking tongue, and one end of the thermal reaction sheet away from the heat-conducting fixing block extends into the connecting groove.

[0015] Preferably, the backing plate body and the second positioning backing plate are perpendicular to each other.

[0016] The beneficial effects of the present invention are as follows: the present invention adopts a method of simultaneous welding by an upper laser welding head and a lower laser welding head, and can complete double-sided welding after positioning the iron frame assembly once, thereby eliminating the trouble of secondary positioning of the iron frame assembly, greatly shortening the time required to complete a welding task, and greatly improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of one direction of the present invention.

[0018] Figure 2 It is a structural schematic diagram of another aspect of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of one direction of the positioning tooling.

[0020] Figure 4 This is a schematic diagram of the structure of the positioning tooling in another direction.

[0021] Figure 5 It is a schematic structural diagram of the first pressing plate.

[0022] Figure 6 It is a schematic structural diagram of the second pressing plate.

[0023] Figure 7 It is a structural schematic diagram of the first positioning support plate.

[0024] Figure 8 for Figure 7 Enlarged view of part A in the middle.

[0025] Fig. 9 It is a structural schematic diagram of the backing plate body.

[0026] Fig.10 It is a schematic diagram of the structure of the corner positioning member.

[0027] Fig.11 It is a structural schematic diagram of the second positioning support plate.

[0028] Fig.12 Schematic diagram of positioning the iron frame assembly using the positioning tool.

[0029] Fig.13 This is a structural diagram of the iron frame component in one direction.

[0030] Fig.14 This is a schematic diagram of the structure of the iron frame assembly in another direction.

[0031] In the figure: In the figure: 1, frame, 2, first horizontal linear module, 3, first vertical linear module, 4, rotary drive, 5, upper laser welding head, 6, lower laser welding head, 7, tooling base plate, 8, first positioning base plate, 8a, second protective gas outlet, 9, second positioning base plate, 9a, second exhaust port, 10, first pressing plate, 10a, first protective gas outlet, 10b, first protective gas channel, 11, second pressing plate, 11a, first exhaust port, 11b, first exhaust channel, 12, second horizontal linear module, 13, second vertical linear module, 15, first positioning support plate, 15-1, support plate body, 15-1a, mounting hole, 15-1b, guide groove, 15-2, corner positioning piece, 15-2a, slot, 15-2b, corner positioning slot, 15-2c, guide boss, 15-3, spring connecting frame, 15-4, spring, 15-5, heat reaction plate, 15-5a, first metal layer, 15-5b, second metal layer, 15-6, heat conductive fixing block, 15-7, lock tongue, 15-7a, connecting slot, 16, second positioning support plate, 17, first protective gas inlet pipe, 18, first exhaust pipe, 19, second protective gas inlet pipe, 20, second exhaust pipe, 21, first clamping drive cylinder, 22, second clamping drive cylinder, 30, iron frame assembly, 31, upper welding position, 32, side welding position, 33, lower welding position. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0033] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0034] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0035] like Figures 1 to 14 As shown, an iron frame assembly welding device includes a frame 1, on which a positioning tool, a first moving device, and a second moving device are provided. The first moving device is provided with an upper laser welding head 5, and the second moving device is provided with a lower laser welding head 6. The lower laser welding head 6 is located below the positioning tool, and the upper laser head is located above the positioning tool. The positioning tooling includes a first positioning base plate 8 and a second positioning base plate 9. The first positioning base plate 8 is provided with a first positioning support plate 15 and a first clamping mechanism. The second positioning base plate 9 is provided with a second positioning support plate 16 and a second clamping mechanism. A laser passage gap is provided between the first positioning base plate 8 and the second positioning base plate 9.

[0036] In the present invention, the first moving device is used to drive the upper welding laser head to move in the horizontal and vertical directions, and the second moving device is used to drive the lower welding laser head to move in the horizontal and vertical directions. The positioning tool is used to position the two iron frame assemblies 30 . Among them, when positioning the iron frame assembly 30, the two iron frame assemblies 30 are placed on the first positioning base plate 8 and the second positioning base plate 9 respectively, and the two iron frame assemblies 30 are respectively close to the first positioning support plate 15 and the second positioning support plate 16, and the angle between the two iron frame assemblies 30 reaches the required splicing angle through the first positioning support plate 15 and the second positioning support plate 16, and then the two iron frame assemblies 30 are clamped and fixed by the first clamping mechanism and the second clamping mechanism, and the joint between the two iron frame assemblies 30 is located above the laser passing gap; during welding, the upper laser welding head 5 is driven to move along the joint direction by the first moving device, and the lower laser welding head 6 is driven to move along the joint direction by the second moving device, and the upper and lower sides of the joint are welded by the upper laser welding head 5 and the lower laser welding head 6 at the same time, so that the double-sided welding of the iron frame assembly 30 can be completed at one time; wherein, the role of the laser passing gap is to allow the laser beam of the lower laser welding head 6 to pass through and reach the lower welding position 33. Compared with the traditional welding method, the present invention adopts the method of simultaneous welding of the upper laser welding head 5 and the lower laser welding head 6. After positioning the iron frame assembly 30 once, double-sided welding can be completed, eliminating the trouble of secondary positioning of the iron frame assembly 30, greatly shortening the time required to complete a welding task, and greatly improving welding efficiency.

[0037] Among them, the first moving device includes a first horizontal linear module 2, a first vertical linear module 3 is provided on the first horizontal linear module 2, and the upper welding laser head is arranged on the first vertical linear module 3; the second moving device includes a second horizontal linear module 12, a second vertical linear module 13 is provided on the second horizontal linear module 12, and the lower welding laser head is arranged on the second vertical linear module 13.

[0038] The first horizontal linear module 2 is fixedly mounted on the frame 1, and the first horizontal linear module 2 is arranged in a horizontal direction, and is used to drive the upper laser welding head 5 to move horizontally; the first vertical linear module 3 is arranged in a vertical direction, and is used to drive the upper laser welding head 5 to move horizontally and vertically. The second horizontal linear module 12 is fixedly mounted on the frame 1, and the second horizontal linear module 12 is arranged in a horizontal direction, and is used to drive the lower laser welding head 6 to move horizontally; the second vertical linear module 13 is arranged in a vertical direction, and is used to drive the lower laser welding head 6 to move horizontally and vertically.

[0039] The first vertical linear module 3 is provided with a rotary driver 4, and the upper laser welding head 5 is mounted on the rotary driver 4; the rotary driver 4 drives the upper laser welding head 5 to rotate in a vertical plane. The rotary driver 4 is used to adjust the angle of the upper laser welding head 5 to meet welding requirements at different angles.

[0040] Specifically, the first clamping mechanism includes a first clamping drive cylinder 21 disposed on the first positioning base plate 8, the piston rod of the first clamping drive cylinder 21 is connected to the first clamping plate 10, and the first clamping drive cylinder drives the first clamping plate 10 to move up and down; the second clamping mechanism includes a second clamping drive cylinder 22 disposed on the second positioning base plate 9, the piston rod of the second clamping drive cylinder 22 is connected to the second clamping plate 11, and the second clamping drive cylinder drives the second clamping plate 11 to move up and down. The first positioning base plate 8 and the second positioning base plate 9 are installed on the tooling base plate 7. The first clamping drive cylinder drives the first clamping plate 10 to move up and down to achieve the clamping or loosening of the iron frame assembly 30; the second clamping drive cylinder drives the second clamping plate 11 to move up and down to achieve the clamping or loosening of the iron frame assembly 30.

[0041] A first protective gas outlet 10a is provided on the first pressing plate 10, and a first air exhaust port 11a is provided on the second pressing plate 11. The first protective gas inlet and the first air exhaust port 11a are respectively located on both sides above the splicing position of the two iron frame assemblies 30; a first protective gas channel 10b is provided in the first pressing plate 10, the first protective gas outlet 10a is communicated with the first protective gas channel 10b, and one end of the first protective gas channel 10b is connected to the first protective gas inlet pipe 17; a first air exhaust channel 11b is provided in the second pressing plate 11, the first air exhaust port 11a is communicated with the first air exhaust channel 11b, and one end of the first air exhaust channel 11b is connected to the first air exhaust pipe 18.

[0042] The first shielding gas inlet pipe 17 is connected to the shielding gas storage tank, which is filled with shielding gas. The first exhaust pipe 18 is connected to the exhaust device. When welding the iron frame assembly 30, the first pressing plate 10 and the second pressing plate 11 press the two iron frame assemblies 30 tightly; at this time, the first shielding gas inlet and the first exhaust port 11a are respectively located on both sides of the upper welding position 31; during the welding process, the shielding gas storage tank outputs shielding gas, and the shielding gas flows to the top of the welding position after passing through the first shielding gas inlet pipe 17, the first shielding gas channel 10b, and the first shielding gas outlet 10a in sequence, so that the upper welding position 31 is in the atmosphere of shielding gas, so as to protect the metal molten pool generated during the welding process and protect the high-temperature metal at the welding position from the invasion of external gases; at the same time, the exhaust device is started, and the smoke generated during the welding process will be sucked into the first exhaust port 11a, reducing the pollution of the smoke to the surrounding environment.

[0043] The first positioning base plate 8 is provided with a second shielding gas outlet 8a, the second positioning base plate 9 is provided with a second air extraction port 9a, and the second shielding gas inlet and the second air extraction port 9a are respectively located on both sides below the splicing position of the two iron frame components 30; the first positioning base plate 8 is provided with a second shielding gas channel, the second shielding gas outlet 8a is connected to the second shielding gas channel, and one end of the second shielding gas channel is connected to the second shielding gas inlet pipe 19; the second positioning base plate 9 is provided with a second air extraction channel, the second air extraction port 9a is connected to the second air extraction channel, and one end of the second air extraction channel is connected to the second air extraction pipe 20. The second shielding gas inlet pipe 19 is connected to the shielding gas storage tank. The second air extraction pipe 20 is connected to the air extraction device. When welding the iron frame assembly 30, the second shielding gas inlet and the second exhaust port 9a are respectively located on both sides of the lower welding position 33; during the welding process, the shielding gas storage tank outputs shielding gas, and the shielding gas passes through the second shielding gas inlet pipe 19, the second shielding gas channel, and the second shielding gas outlet 8a in sequence and then flows to the bottom of the welding position, so that the lower welding position 33 is in the shielding gas atmosphere to protect the molten metal pool generated during the welding process and to protect the high-temperature metal at the welding position from being invaded by external gases; at the same time, the exhaust device is started, and the smoke generated during the welding process will be sucked into the second exhaust port 9a to reduce the pollution of the smoke to the surrounding environment.

[0044] In this embodiment, argon is selected as the protective gas.

[0045] Further, the first positioning back plate 15 includes a back plate body 15-1 and a corner positioning member 15-2, wherein one end of the back plate body 15-1 is provided with a guide groove 15-1b, the corner positioning member 15-2 is provided with a guide boss 15-2c, the guide boss 15-2c is slidably connected to the guide groove 15-1b, and the corner positioning member 15-2 is provided with a corner positioning groove 5-2b; the back plate body 15-1 is provided with a spring connecting frame 15-3, and a spring 15-4 is provided between the spring connecting frame 15-3 and the corner positioning member 15-2; A locking tongue slot and a mounting hole 15-1a are provided at one end of the back plate body 15-1 close to the corner positioning member 15-2, a locking tongue 15-7 is slidably connected in the locking tongue slot, and a slot 15-2a corresponding to the locking tongue 15-7 is provided on the corner positioning member 15-2; A heat-conducting fixing block 15-6 is provided at one end of the mounting hole 15-1a, and one end of the heat-conducting fixing block 15-6 is flush with the outer surface of the back plate body 15-1; a heat-reactive sheet 15-5 is connected to the heat-conducting fixing block 15-6, and one end of the heat-reactive sheet 15-5 is connected to the heat-conducting fixing block 15-6, and the other end of the heat-reactive sheet 15-5 is connected to the lock tongue 15-7; the heat-reactive sheet 15-5 is composed of a first metal layer 15-5a and a second metal layer 15-5b, and the second metal layer 15-5b is located on the side of the first metal layer 15-5a away from the corner positioning member 15-2; the thermal expansion coefficient of the first metal layer 15-5a is greater than the thermal expansion coefficient of the second metal layer 15-5b; When positioning the two iron frame assemblies 30, the corner positioning piece 15-2 is in a positioning state, one end of the two iron frame assemblies 30 is placed in the corner positioning groove 5-2b, and the heat conductive fixing block 15-6 is in contact with the iron frame assembly 30; when the corner positioning piece 15-2 is in a positioning state, the front end of the lock tongue 15-7 extends into the slot 15-2a on the corner positioning piece 15-2, and the spring 15-4 is in a stretched energy storage state.

[0046] When positioning the two iron frame assemblies 30, the splicing ends of the two iron frame assemblies 30 are placed in the corner positioning groove 5-2b, and one end of the two iron frame assemblies 30 is positioned through the corner positioning groove 5-2b to improve the positioning accuracy of the corner splicing position of the two iron frame assemblies 30.

[0047] Considering that in some cases, it is necessary to weld the sides of the joints of the two iron frame components 30, the side welding position 32 is as follows: Fig.13 and Fig.14As shown, in order to avoid the corner positioning member 15-2 from blocking the side welding position 32, in the present invention, the corner positioning member 15-2 is designed to be movable relative to the back plate body 15-1. During the welding process, the corner positioning member 15-2 is moved away from the side welding position 32 to ensure normal welding of the side welding position 32. The specific principle is as follows: before welding, the corner positioning piece 15-2 is in a positioning state, at which time the front end of the lock tongue 15-7 extends into the slot 15-2a on the corner positioning piece 15-2, and the spring 15-4 is in a stretched energy storage state; the ends of the two iron frame assemblies 30 extend into the corner positioning slot 5-2b, and the ends of the two iron frame assemblies 30 are spliced ​​together to form a corner, and the two iron frame assemblies 30 are respectively clamped and fixed by the first clamping mechanism and the second clamping mechanism. After the two iron frame assemblies 30 are clamped and fixed, the positioning task of the corner positioning piece 15-2 has been completed; in the subsequent welding process, due to the increase in temperature of the iron frame assembly 30, since the heat-conducting fixing block 15-6 is in contact with the iron frame assembly 30, the increase in temperature of the iron frame assembly 30 will cause the temperature of the heat-conducting fixing block 15-6 to rise, and the heat-conducting fixing block 15-6 will transfer heat to the heat reaction sheet 15-5, thereby causing the temperature of the heat reaction sheet 15-5 to rise; the temperature rising process of the heat reaction sheet 15-5 In the process, since the thermal expansion coefficient of the first metal layer 15-5a is greater than the thermal expansion coefficient of the second metal layer 15-5b, the thermal expansion amount of the first metal layer 15-5a is greater than the thermal expansion amount of the second metal layer 15-5b, so that the end of the heat-reactive plate 15-5 close to the lock tongue 15-7 is bent in the direction away from the corner positioning member 15-2, thereby driving the lock tongue 15-7 to move in the direction away from the corner positioning member 15-2, so that the lock tongue 15-7 is disengaged from the slot 15-2a on the corner positioning member 15-2, thereby releasing the lock between the back plate body and the corner positioning member 15-2; at this time, the corner positioning member 15-2 will move and move away from the iron frame assembly 30 under the pulling action of the spring 15-4. Due to the distance of the corner positioning member 15-2, the side welding position 32 between the two iron frame assemblies 30 is not blocked, so that by adjusting the laser angle of the upper laser welding head 5, the laser beam can be irradiated onto the side welding position 32 and weld the side welding position 32.

[0048] When the current welding task is completed, the welded iron frame assembly 30 is removed from the positioning tooling, the thermal reaction plate 15-5 will gradually cool down and return to its initial state, and the lock tongue 15-7 will also re-extend; the corner positioning member 15-2 is manually pushed back to the positioning state, thereby completing the resetting of the corner positioning member 15-2.

[0049] It is worth mentioning that, during the welding process, the upper welding position 31 and the lower welding position 33 are welded first, and then the side welding position 32 is welded.

[0050] The heat-conducting fixing block 15 - 6 may be made of copper alloy. The heat-conducting fixing block 15 - 6 is pressed into the mounting hole 15 - 1 a by press-fitting and has an interference fit with the mounting hole 15 - 1 a .

[0051] The locking tongue 15-7 is provided with a connecting groove 15-7a, and one end of the heat-reactive sheet 15-5 away from the heat-conducting fixing block 15-6 extends into the connecting groove 15-7a. The support plate body 15-1 and the second positioning support plate 16 are perpendicular to each other.

[0052] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. An iron frame assembly welding device, characterized in that: The machine frame comprises a positioning tool, a first moving device and a second moving device, the first moving device is provided with an upper laser welding head, the second moving device is provided with a lower laser welding head, the lower laser welding head is located below the positioning tool, and the upper laser head is located above the positioning tool; The positioning tooling comprises a first positioning base plate and a second positioning base plate. The first positioning base plate is provided with a first positioning support plate and a first clamping mechanism. The second positioning base plate is provided with a second positioning support plate and a second clamping mechanism. A laser passage gap is provided between the first positioning base plate and the second positioning base plate.

2. The iron frame assembly welding equipment according to claim 1, characterized in that: The first moving device comprises a first horizontal linear module, a first vertical linear module is arranged on the first horizontal linear module, and an upper welding laser head is arranged on the first vertical linear module; The second moving device comprises a second horizontal linear module, a second vertical linear module is arranged on the second horizontal linear module, and the lower welding laser head is arranged on the second vertical linear module.

3. The iron frame assembly welding equipment according to claim 1, characterized in that: The first vertical linear module is provided with a rotary driver, and the upper laser welding head is installed on the rotary driver; the rotary driver drives the upper laser welding head to rotate in a vertical plane.

4. The iron frame assembly welding equipment according to claim 1, characterized in that: The first clamping mechanism includes a first clamping drive cylinder arranged on the first positioning base plate, and the first clamping drive cylinder has a piston rod connected to a first pressure plate, and the first pressure plate is driven to move up and down by the first clamping drive cylinder; the second clamping mechanism includes a second clamping drive cylinder arranged on the second positioning base plate, and the second clamping drive cylinder has a piston rod connected to a second pressure plate, and the second pressure plate is driven to move up and down by the second clamping drive cylinder.

5. The iron frame assembly welding equipment according to claim 1, characterized in that: The first pressing plate is provided with a first protective gas outlet, the second pressing plate is provided with a first air extraction port, and the first protective gas inlet and the first air extraction port are respectively located on both sides above the splicing position of the two iron frame components; A first protective gas channel is provided in the first pressing plate, the first protective gas outlet is connected to the first protective gas channel, and one end of the first protective gas channel is connected to the first protective gas inlet pipe; A first air extraction channel is provided in the second pressing plate, the first air extraction port is communicated with the first air extraction channel, and one end of the first air extraction channel is connected to the first air extraction pipe.

6. The iron frame assembly welding equipment according to claim 1, characterized in that: The first positioning bottom plate is provided with a second protective gas outlet, the second positioning bottom plate is provided with a second air extraction port, and the second protective gas inlet and the second air extraction port are respectively located on both sides below the splicing position of the two iron frame components; A second protective gas channel is provided in the first positioning base plate, the second protective gas outlet is connected to the second protective gas channel, and one end of the second protective gas channel is connected to the second protective gas inlet pipe; A second air extraction channel is provided in the second positioning base plate, the second air extraction port is communicated with the second air extraction channel, and one end of the second air extraction channel is connected to the second air extraction pipe.

7. The iron frame assembly welding equipment according to claim 1, characterized in that: The first positioning backing plate comprises a backing plate body and a corner positioning member, wherein one end of the backing plate body is provided with a guide groove, the corner positioning member is provided with a guide boss, the guide boss is slidably connected in the guide groove, and the corner positioning member is provided with a corner positioning groove; the backing plate body is provided with a spring connecting frame, and a spring is provided between the spring connecting frame and the corner positioning member; A lock tongue slide groove and a mounting hole are provided at one end of the back plate body close to the corner positioning piece, a lock tongue is slidably connected in the lock tongue slide groove, and a slot corresponding to the lock tongue is provided on the corner positioning piece; A heat-conducting fixing block is arranged at one end of the mounting hole, and one end of the heat-conducting fixing block is flush with the outer surface of the backing plate body; a heat-reactive sheet is connected to the heat-conducting fixing block, and one end of the heat-reactive sheet is connected to the heat-conducting fixing block, and the other end of the heat-reactive sheet is connected to the locking tongue; the heat-reactive sheet is composed of a first metal layer and a second metal layer, and the second metal layer is located on a side of the first metal layer away from the corner positioning piece; the thermal expansion coefficient of the first metal layer is greater than the thermal expansion coefficient of the second metal layer; When positioning the two iron frame assemblies, the corner positioning piece is in a positioning state, one end of the two iron frame assemblies are placed in the corner positioning groove, and the heat conductive fixing block is in contact with the iron frame assembly; when the corner positioning piece is in a positioning state, the front end of the lock tongue extends into the slot on the corner positioning piece, and the spring is in a stretched energy storage state.

8. The iron frame assembly welding equipment according to claim 7, characterized in that: The locking tongue is provided with a connecting groove, and one end of the thermal reaction sheet away from the heat-conducting fixing block extends into the connecting groove.

9. The iron frame assembly welding equipment according to claim 7, characterized in that: The backing plate main body and the second positioning backing plate are perpendicular to each other.

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