Automatic welding apparatus and method for square housings, end caps

Abstract

The application discloses a kind of square shell, end cover automatic welding equipment and method, including rotating device, shell clamping device, lifting device, end cover clamping device, welding device;Shell clamping device is set on rotating device;End cover clamping device is set on lifting device;Shell clamping device includes inner clamping component, outer clamping component;Inner clamping component includes inner drive device, inner linkage lifting piece, inner clamping plate, and inner drive device is used to drive inner linkage lifting piece to slip, and inner linkage lifting piece drives inner clamping plate to slip;Outer clamping component includes outer drive device and outer clamping plate, and outer drive device is used to drive outer clamping plate to slip.The above scheme is used to provide a kind of square shell inside and outside clamping, and through rotating shell clamping device, so that welding device is not rotated to complete the welding of square shell and square end cover circumferential intersection of square shell, end cover automatic welding equipment and method.

Description

Technical Field

[0001] This invention belongs to the field of new energy batteries, specifically relating to an automatic welding equipment and method for a square shell and end cap. Background Technology

[0002] With the development of new energy vehicles, blade batteries have also developed rapidly. The production process of blade batteries involves welding a square casing and a square end cap.

[0003] like Figure 1 As shown, the conventional method for welding the square shell 91 and the square end cap 92 is to clamp the four outer periphery of the square shell, place the square end cap on the top of the square shell, and then weld the intersection of the square shell and the square end cap by laser welding.

[0004] The shortcomings of the above welding method are: the square shell has a thin wall thickness and is made of easily deformable materials such as alloys. Clamping the four outer sides of the square shell can easily cause a certain degree of deformation of the square shell, which will affect the docking accuracy of the square shell and the square end cap, and thus affect the production quality. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an automatic welding device and method for square shells and end caps that clamps the inside and outside of a square shell and completes the welding at the circumferential intersection of the square shell and the square end cap without rotating the welding device by rotating the shell clamping device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An automatic welding device for a square shell and end caps includes: a shell clamping device, comprising a mounting base, an inner clamping assembly, and an outer clamping assembly. The inner clamping assembly is disposed on the mounting base and includes an inner drive device, an inner linkage lifting component, and multiple inner clamping plates. The inner drive device drives the inner linkage lifting component to slide up and down. Each inner clamping plate is arranged circumferentially around the outer periphery of the inner linkage lifting component and slides horizontally on the mounting base. An inclined slide rail structure is provided between the inner linkage lifting component and each inner clamping plate to drive the inner clamping plates to move away from or towards each other by the lifting of the inner linkage lifting component. The outer clamping assembly is disposed on the mounting base, and there are multiple outer clamping assemblies arranged circumferentially on the mounting base. The outer periphery of the inner clamping assembly includes an outer driving device and an outer clamping plate. The outer clamping plate is slidably disposed on the mounting base in a horizontal direction, and the outer driving device is used to drive the outer clamping plate to slide. The outer clamping plate and the inner clamping plate are arranged opposite to each other. A rotating device is used to drive the housing clamping device to rotate 90°. A welding device is used to include three-axis displacement devices located on opposite sides of the housing clamping device. Each three-axis displacement device is equipped with a welding head. The welding gap between the edge of the square housing upper port and the edge of the square end cap on the housing clamping device corresponds to the axial position of the welding energy emission part of the welding head. An end cap clamping device and a lifting device are used to hold the end cap. The end cap clamping device is located above the housing clamping device and is installed on the lifting device.

[0008] The invention is further configured such that: the mounting base includes a base, an outer clamping seat, an outer lifting rod, an inner clamping seat, an inner lifting rod, and an inner cover plate; the lower end of the outer lifting rod is connected to the base, and the upper end of the outer lifting rod is connected to the outer clamping seat, with each outer clamping component disposed on the upper side of the outer clamping seat; the bottom of the inner clamping seat is fixedly connected to the base, the lower end of the inner lifting rod is connected to the inner clamping seat, and the upper end of the inner lifting rod is connected to the inner cover plate, thus forming an action space between the inner clamping seat and the inner cover plate, with each inner clamping plate being positioned vertically by the inner clamping seat and the inner cover plate, and the inner linkage lifting component moving up and down in the action space; the outer clamping seat is arranged in a ring shape and surrounds the outer periphery of the inner clamping seat, with an anti-collision space provided between the outer clamping seat and the inner clamping seat.

[0009] The invention is further configured such that: the internal drive device includes an internal lifting cylinder and a connecting rod; the internal lifting cylinder is disposed on the base; the internal clamping seat has a first through-hole; the connecting rod passes through the first through-hole; and the lower end of the connecting rod is connected to the output shaft of the internal lifting cylinder, and the upper end is connected to the bottom of the internal linkage lifting component; it also includes two sets of guide assemblies, which are disposed on both sides of the connecting rod; each guide assembly includes a guide sleeve disposed on the internal clamping seat and a guide rod disposed on the internal linkage lifting component, with the guide sleeve and guide rod fitting together; it also includes two sets of air blowing assemblies, which are... The air blowing components are located on both sides of the connecting rod. Each air blowing component includes a channel seat located in the action space and an air blowing nozzle located on the inner clamping seat. The inner clamping seat has a vertically penetrating first channel, the channel seat has a vertically penetrating second channel, and the inner cover plate has a vertically penetrating third channel. The lower end of the second channel is connected to the upper end of the first channel, the upper end of the second channel is connected to the lower end of the third channel, and the air blowing nozzle is connected to the lower end of the first channel. The inner linkage lifting component has a vertically penetrating second through hole, and the channel seat passes through the second through hole.

[0010] The present invention is further configured to include two sets of ejection components, which are disposed on both sides of the inner clamping seat. Each ejection component includes an ejection driving device and an ejector. The ejection driving device is disposed at the bottom of the outer clamping seat, and the ejector is disposed on the output shaft of the ejection driving device. The ejector is provided with an ejection surface below the anti-collision space. The width of the anti-collision space is k1, and the width of the ejection surface is k2, wherein k1 > k2.

[0011] The invention is further configured to include two sets of guide components, which are disposed on both sides of the connecting rod. Each guide component includes a guide sleeve disposed on the inner clamping seat and a guide rod disposed on the inner linkage lifting component. The guide sleeve and the guide rod are fitted together. An elastic support is provided on the top of the inner clamping seat and / or the bottom of the inner cover plate. The elastic support is used to provide a buffering effect by deforming under the impact of the inner linkage lifting component when the inner linkage lifting component moves upward or downward. The invention also includes multiple support components, with at least two support components disposed on both sides of the inner clamping seat. Each support component includes an adjusting seat, a supporting seat, and an adjusting bolt. The adjusting seat is fixedly disposed on the inner clamping seat. The supporting seat is slidably disposed on the inner clamping seat along the vertical direction and is located above the adjusting seat. The adjusting bolt is threadedly connected to and passes through the adjusting seat. The adjusting bolt is provided with a driving head below the adjusting seat and a pushing part above the adjusting seat. The top of the supporting seat is provided with an upward-facing guide slope close to the inner clamping seat. The supporting seat is provided with a horizontal supporting surface below the guide slope.

[0012] The present invention is further configured such that: the lifting device is provided with lifting, the lifting seat is vertically slidable relative to the frame; the end cover clamping device includes a rotating component, a rotating pressure plate and a connecting assembly, the rotating component is disposed on the lifting seat, the rotating component is provided with a second rotating seat, and the rotating pressure plate is disposed below the second rotating seat through the connecting assembly.

[0013] The invention is further configured such that: the connecting assembly includes a hinge ball, an offset rod, and a tensioning spring; the hinge ball is disposed between the second rotating seat and the rotating pressure plate to ball-hing the second rotating seat and the rotating pressure plate; there are multiple offset rods, each offset rod surrounding the outer periphery of the hinge ball; the second rotating seat is provided with an offset hole vertically through each offset rod; one end of each offset rod faces downward and is fixedly connected to the rotating pressure plate; each offset rod passes through the offset hole upward; and the upper end of each offset rod is provided with an anti-detachment head above the offset hole; the diameter of the offset hole is d1; the outer diameter of the offset rod is d2, wherein d1 > d2; there are multiple tensioning springs, each tensioning spring is sleeved on the outer periphery of the offset rod; and the upper and lower ends of the tensioning springs respectively abut against the second rotating seat and the rotating pressure plate to reset the rotating pressure plate downward.

[0014] The present invention is further configured to include a positioning device, which includes a positioning drive device and a positioning component. The positioning drive device is disposed on the lifting seat, and the positioning component is disposed on the output shaft of the positioning drive device so that the positioning drive device drives the positioning component to slide horizontally. The positioning component is provided with a positioning cone protrusion, and the second rotating seat is provided with a positioning cone recess. The positioning cone protrusion is inserted into the positioning cone recess so that the second rotating seat is circumferentially positioned.

[0015] The present invention is further configured such that each triaxial displacement device includes an x-track, an x-carriage, an x-drive device, a y-track, a y-carriage, a y-drive device, a z-track, a z-carriage, and a z-drive device. The y-carriage is slidably disposed on the y-track, and the y-drive device is used to drive the y-carriage to slide. The x-track is disposed on the y-carriage, the x-carriage is slidably disposed on the x-track, and the x-drive device is used to drive the x-carriage to slide. The z-track is disposed on the x-carriage, the z-carriage is slidably disposed on the z-track, and the z-drive device is used to drive the z-carriage to slide. The welding head is disposed on the z-carriage.

[0016] An automatic welding method for a square housing and end cap is disclosed, used to weld a square end cap to the upper end of a square housing with openings at both the top and bottom. The method employs the aforementioned automatic welding equipment for square housings and end caps. Specific steps include: S1: The square housing is placed downwards on the outer periphery of an inner clamping assembly, such that the inner clamping plate is on the inner periphery of the square housing and close to its upper end, and the outer clamping plate is on the outer periphery of the square housing and close to its upper end; S2: An inner drive device operates to drive an inner linkage lifting component to move downwards, causing the inner clamping plates to move away from each other and press against the inner periphery of the square housing. Simultaneously, each outer drive device operates to drive the outer clamping plates to move closer together and press against the square housing. The outer peripheral wall allows for the internal and external clamping of the square shell through the inner and outer clamping plates; S3: The square end cap is aligned and placed on the upper end of the square shell, and the upper end of the square end cap is covered; S4: The lifting device works to drive the lifting seat to move downward, thereby causing the end cap clamping device to press downward on the square end cap to ensure the fixation of the square shell and the square end cap; S5: Two welding devices work to weld the two sides where the square shell and the square end cap meet; S6: The rotating device works to drive the shell clamping device to rotate 90°; S7: Two welding devices work to weld the other two sides where the square shell and the square end cap meet; S8: S9: The lifting device works to drive the lifting seat to move upward and release the end cover clamping device from pressing the square end cover; S10: The inner drive device works to drive the inner linkage lifting component to move upward and drive each inner clamping plate to move closer to each other. Simultaneously, each outer drive device works to drive each outer clamping plate to move away from each other, so as to release the inner and outer clamping plates from the square shell; S11: The square shell is pulled upward out of the inner clamping assembly to complete the unloading.

[0017] The beneficial effects achieved by adopting the above technical solution are as follows:

[0018] 1. The square shell to be welded is clamped and fixed by the end cap clamping device. Then, the square end cap is aligned and placed on top of the square shell. After that, the lifting device drives the end cap clamping device to fix the square end cap and the square shell. At this time, the length sides of the square shell and the square end cap are on the left and right sides, so the welding device can weld the intersection of the two length sides of the square shell and the square end cap. After the length side intersection of the square shell and the square end cap is welded, the rotating device works to make the shell clamping device rotate 90° so that the width side of the square shell and the square end cap is on the left and right sides, so the welding device can weld the intersection of the two width sides of the square shell and the square end cap. After the width side intersection of the square shell and the square end cap is welded, the welded assembly can be unloaded.

[0019] 2. The stability of the square shell is improved by clamping multiple faces on the inner and outer sides of the square shell using the inner and outer clamping components. When the inner and outer clamping plates are in place, the inner clamping plate exerts an outward force on the square shell, and the outer clamping plate exerts an inward force on the square shell. The two forces cancel each other out to prevent large inward or outward forces from causing deformation of the square shell. With the square shell stably clamped and with minimal deformation, the square end cap can be precisely connected to the square shell, resulting in more stable subsequent welding and ensuring welding quality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the assembly of a square shell and square end caps;

[0022] Figure 2 This is an assembly diagram illustrating a specific embodiment of the present invention;

[0023] Figure 3 This is an assembly diagram of the rotating device, the housing clamping device, the lifting device, and the end cap clamping device in a specific embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of the rotating device, the housing clamping device, the lifting device, and the end cap clamping device in a specific embodiment of the present invention;

[0025] Figure 5 This is an assembly diagram of the housing clamping device in a specific embodiment of the present invention;

[0026] Figure 6 This is an exploded view of the housing clamping device in a specific embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional view of the rotating device and the housing clamping device in a specific embodiment of the present invention;

[0028] Figure 8 This is an assembly diagram of the inner clamping component and related mounting base in a specific embodiment of the present invention;

[0029] Figure 9 This is an exploded view of the inner clamping component and related mounting base in a specific embodiment of the present invention;

[0030] Figure 10 for Figure 7 Enlarged view of A in the middle;

[0031] Figure 11 for Figure 10 Enlarged view of B in the middle;

[0032] Figure 12 for Figure 9 Enlarged view of C;

[0033] Figure 13 This is a schematic diagram of the support base in a specific embodiment of the present invention;

[0034] Figure 14 This is an assembly diagram of the end cap clamping device and positioning device in a specific embodiment of the present invention;

[0035] Figure 15 This is a cross-sectional view of the end cap clamping device in a specific embodiment of the present invention. Figure 1 ;

[0036] Figure 16 This is a cross-sectional view of the end cap clamping device in a specific embodiment of the present invention. Figure 2 ;

[0037] Figure 17 for Figure 16 Enlarged view of D;

[0038] Figure 18 This is an assembly diagram of the welding device in a specific embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Rack;

[0041] 11. Tooling platform;

[0042] 2. Rotating device;

[0043] 21. First rotating seat;

[0044] 3. Housing clamping device;

[0045] 31. Mounting base; 32. Inner clamping assembly; 33. Outer clamping assembly; 34. Air blowing assembly; 35. Ejection assembly; 36. Guide assembly; 37. Elastic support; 38. Support assembly;

[0046] 311. Base; 312. Outer clamping seat; 313. Outer lifting rod; 314. Inner clamping seat; 315. Inner lifting rod; 316. Inner cover plate; 317. Movement space; 318. Collision protection space;

[0047] 321. Internal drive unit; 322. Internal linkage lifting component; 323. Internal clamping plate; 324. Slide rail structure;

[0048] 331. External drive unit; 332. External clamping plate;

[0049] 341. First channel; 342. Second channel; 343. Third channel; 344. Channel seat; 345. Air nozzle;

[0050] 351. Ejection drive device; 352. Ejector component;

[0051] 361. Guide sleeve; 362. Guide rod;

[0052] 381. Adjusting seat; 382. Support seat; 383. Adjusting bolt;

[0053] 3141, First through hole; 3142, Locking screw hole; 3143, Misalignment groove;

[0054] 3211. Internal lifting cylinder; 3212. Connecting rod;

[0055] 3221. Second penetration hole;

[0056] 3521. Top surface;

[0057] 3821. Guide slope; 3822. Support surface; 3823. Locking hole;

[0058] 3831. Drive head; 3832. Pushing part;

[0059] 4. Lifting device;

[0060] 41. Adjustable seat;

[0061] 5. End cap clamping device;

[0062] 51. Rotating component; 52. Rotating pressure plate; 53. Connecting assembly; 54. Positioning device;

[0063] 511. Second rotating seat;

[0064] 531. Articulated ball; 532. Offset rod; 533. Tensioning spring; 534. Arc groove; 535. Offset hole; 536. Anti-detachment head;

[0065] 541. Positioning drive device; 542. Positioning component; 543. Positioning cone protrusion; 544. Positioning cone concavity;

[0066] 6. Welding equipment;

[0067] 61. X-track; 62. X-carriage; 63. Y-track; 64. Y-carriage; 65. Z-track; 66. Z-carriage; 67. Welded joint;

[0068] 91. Square shell; 92. Square end cap;

[0069] 3321, First clamping plate; 3322, Second clamping plate; 3231, Third clamping plate; 3232, Fourth clamping plate. Detailed Implementation

[0070] To enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection of the present invention, the present invention will be described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present invention, and are merely a part of the embodiments of the present invention. The specific and direct descriptions of related structures are only for the convenience of understanding the present invention, and the specific features do not necessarily or directly limit the scope of the present invention. Conventional choices and substitutions made by those skilled in the art under the guidance of the present invention should be considered within the scope of protection of the present invention.

[0071] This invention discloses an automatic welding device for square shells and end caps, used for... Figure 1 The square end cap 92 shown is welded to Figure 1 The upper opening of the square shell 91 shown is at the top and bottom openings.

[0072] Among them, such as Figures 2-4 As shown, the welding equipment includes:

[0073] The machine frame 1 is equipped with a square tooling platform 11.

[0074] Rotating device 2 is located in the middle of tooling platform 11. A first rotating seat 21 is provided on the top of rotating device 2. The first rotating seat 21 is rotatably arranged relative to frame 1, and the rotation axis of the first rotating seat 21 is arranged vertically.

[0075] The housing clamping device 3 is disposed on the first rotating seat 21 so as to rotate with the first rotating seat 21;

[0076] Lifting device 4 is mounted on frame 1 and located behind housing clamping device 3. Lifting device 4 has a lifting seat 41 above housing clamping device 3. Lifting seat 41 is vertically slidable relative to frame 1.

[0077] End cap clamping device 5 is disposed on lifting seat 41 so that it moves downward toward housing clamping device 3 and upward away from housing clamping device 3 as lifting seat 41 moves downward.

[0078] The welding device 6 includes three-axis displacement devices located on the left and right sides of the housing clamping device 3. Each three-axis displacement device is equipped with a welding head 67. The welding gap between the edge of the upper port of the square housing 91 on the housing clamping device 3 and the edge of the square end cap 92 corresponds to the position of the welding energy emission part axis of the welding head 67.

[0079] Therefore, the square shell 91 to be welded is clamped and fixed by the end cap clamping device 5, and then the square end cap 92 is aligned and placed above the square shell 91. Then, the lifting device 4 drives the end cap clamping device 5 to fix the square end cap 92 and the square shell 91. At this time, the length sides of the square shell 91 and the square end cap 92 are on the left and right sides, so the welding head 67 of the welding device 6 can weld the intersection of the two length sides of the square shell 91 and the square end cap 92. After the welding of the intersection of the length sides of the square shell 91 and the square end cap 92 is completed, the rotating device 2 works to make the shell clamping device 3 rotate 90° so that the width sides of the square shell 91 and the square end cap 92 are on the left and right sides, so the welding head 67 of the welding device 6 can weld the intersection of the two width sides of the square shell 91 and the square end cap 92. After the welding of the intersection of the width sides of the square shell 91 and the square end cap 92 is completed, the welded assembly can be unloaded.

[0080] Specifically, the rotating device 2 in this embodiment is a JPNC170.

[0081] Specifically, such as Figures 5-10 The housing clamping device 3 shown includes:

[0082] Mounting base 31;

[0083] The inner clamping assembly 32 is disposed on the mounting base 31. The inner clamping assembly 32 includes an inner drive device 321, an inner linkage lifting member 322, and multiple inner clamping plates 323. The inner drive device 321 is used to drive the inner linkage lifting member 322 to slide up and down. Each inner clamping plate 323 is arranged circumferentially on the outer periphery of the inner linkage lifting member 322, and each inner clamping plate 323 is slidably disposed on the mounting base 31 in the horizontal direction. An inclined slide rail structure 324 is provided between the inner linkage lifting member 322 and each inner clamping plate 323 so that the lifting of the inner linkage lifting member 322 drives each inner clamping plate 323 to move away from or closer to each other.

[0084] An external clamping assembly 33 is disposed on a mounting base 31. There are multiple external clamping assemblies 33, which are arranged circumferentially around the inner clamping assembly 32. Each external clamping assembly 33 includes an external driving device 331 and an external clamping plate 332. The external driving device 331 is specifically a cylinder, and the external clamping plate 332 is fitted to the mounting base 31 by means of a slide rail so that the external clamping plate 332 can slide horizontally relative to the mounting base 31. The output shaft of the external driving device 331 is fixedly connected to the external clamping plate 332 so that the operation of the external driving device 331 can drive the external clamping plate 332 to slide.

[0085] The outer clamping plate 332 and the inner clamping plate 323 are arranged opposite to each other. Specifically, the outer clamping plate 332 includes a first clamping plate 3321 for clamping the width side of the square shell 91 and a second clamping plate 3322 for clamping the length side of the square shell 91. Two second clamping plates 3322 are required on the same length side of the square shell 91. Similarly, the inner clamping plate 323 includes a third clamping plate 3231 for clamping the width side of the square shell 91 and a fourth clamping plate 3232 for clamping the length side of the square shell 91. One fourth clamping plate 3232 is used on the same length side of the square shell 91. That is, each third clamping plate 3231 corresponds to one first clamping plate 3321, and each fourth clamping plate 3232 corresponds to two second clamping plates 3322.

[0086] Therefore, by clamping multiple surfaces of the inner and outer sides of the square housing 91 with the inner clamping assembly 32 and the outer clamping assembly 33, the clamping stability of the square housing 91 is improved. When the inner clamping plate 323 and the outer clamping plate 332 are in place, the inner clamping plate 323 exerts an outward force on the square housing 91 and the outer clamping plate 332 exerts an inward force on the square housing 91. The two forces cancel each other out to prevent the square housing 91 from deforming due to large inward or outward forces. With the square housing 91 stably clamped and with minimal deformation, the square end cap 92 can be precisely connected to the square housing 91, thus making subsequent welding more stable and ensuring welding quality.

[0087] Specifically, the mounting base 31 includes a base 311, an outer clamping seat 312, an outer lifting rod 313, an inner clamping seat 314, an inner lifting rod 315, and an inner cover plate 316. The base 311 is positioned above the first rotating seat 21 and is fixedly connected to it using bolts. There are four outer lifting rods 313 arranged in a square pattern. The lower end of each outer lifting rod 313 is fixedly connected to the base 311 using bolts, and the upper end is fixedly connected to the outer clamping seat 312 using bolts. Each outer clamping assembly 33 is located on the upper side of the outer clamping seat 312. The inner clamping seat 314 is roughly rectangular, with its bottom and... The base 311 is fixedly connected by bolts. There are four inner lifting rods 315 arranged in a square. The lower end of each inner lifting rod 315 is fixedly connected to the inner clamping seat 314 by bolts, and the upper end is fixedly connected to the inner cover plate 316 by bolts, so that the inner clamping seat 314 and the inner cover plate 316 form an action space 317. Each inner clamping plate 323 is positioned vertically by the inner clamping seat 314 and the inner cover plate 316. The inner linkage lifting component 322 moves up and down in the action space 317. In addition, the outer clamping seat 312 is arranged in a ring and surrounds the outer periphery of the inner clamping seat 314. An anti-collision space 318 is provided between the outer clamping seat 312 and the inner clamping seat 314.

[0088] Therefore, the base 311 serves as the base, and the outer clamping seat 312 is raised by the outer lifting rod 313, so that the outer clamping plate 332 is positioned higher to clamp the upper part of the square shell 91. In addition, the cuboid inner clamping seat 314 is raised by extending in the height direction, so that the inner clamping plate 323 is positioned higher to clamp the upper part of the square shell 91. Furthermore, the inner lifting rod 315 raises the inner cover plate 316, so that a certain height of action space 317 is formed between the inner clamping seat 314 and the inner cover plate 316. The action space 317 not only provides lifting space for the inner linkage lifting component 322, but also positions the inner clamping plate 323 vertically. Thus, the vertical movement of the inner linkage lifting component 322 is converted into the horizontal movement of the inner clamping plate 323 through the inclined slide rail structure 324.

[0089] The outer clamping seat 312 is arranged in a ring so that it surrounds the outer periphery of the inner clamping seat 314, providing a mounting position for the circumferentially arranged outer clamping components 33. An anti-collision space 318 is formed between the outer clamping seat 312 and the inner clamping seat 314, so that the space facing outward is divided into the innermost inner clamping component 32 layout space, the middle square shell 91 loading and unloading space, and the outermost outer clamping component 33 layout space. The spaces do not interfere with each other, making the layout more orderly.

[0090] In addition, such as Figure 11As shown, it also includes two sets of air blowing assemblies 34, which are disposed on both sides of the connecting rod 3212 so that the air blowing assemblies 34 and the connecting rod 3212 are arranged along the length direction of the inner clamping seat 314. Each air blowing assembly 34 includes a channel seat 344 disposed in the action space 317 and an air blowing nozzle 345 disposed on the inner clamping seat 314. The inner clamping seat 314 is provided with a vertically penetrating first channel 341, and the channel seat 344 is provided with a vertically penetrating second channel 345. The second channel 342 and the inner cover plate 316 are provided with a vertically penetrating third channel 343. The upper and lower ends of the channel seat 344 abut against the inner clamping seat 314 and the inner cover plate 316 respectively, and are fixedly connected by bolts so that the lower end of the second channel 342 is connected to the upper end of the first channel 341, and the upper end of the second channel 342 is connected to the lower end of the third channel 343. In addition, the air blowing nozzle 345 is connected to the lower end of the first channel 341, so that the air blowing nozzle 345 can be connected to the air source.

[0091] Therefore, 1. After the welding process is completed, the air is blown through the air nozzle 345 to make the upper end of the inner cover plate 316 more smoothly remove the welded assembly; 2. The channel seat 344 is set to support the inner clamping seat 314 and the inner cover plate 316, and the stability of the support is improved in conjunction with the inner lifting rod 315.

[0092] In addition, the internal linkage lifting component 322 is vertically provided with a second through hole 3221. The peripheral wall of the second through hole 3221 is slightly larger than the outer peripheral wall of the channel seat 344, so that the channel seat 344 passes through the second through hole 3221.

[0093] In addition, it includes two sets of ejection assemblies 35, which are disposed on both sides of the inner clamping seat 314. Each ejection assembly 35 includes an ejection drive device 351 and an ejector 352. The ejection drive device 351 is a cylinder, and its upper end is fixed to the bottom of the outer clamping seat 312 by bolts. The output shaft of the ejection drive device 351 is arranged downwards, and the ejector 352 is disposed beside the output shaft of the ejection drive device 351 and extends upwards. The upper end of the ejector 352 is provided with an ejector surface 3521 located below the anti-collision space 318. Specifically, the width of the anti-collision space 318 is k1, and the width of the ejector surface 3521 is k2, where k1 > k2. More specifically, a misalignment groove 3143 is provided on the side wall of the inner clamping seat 314 on the width side. The structural part of the ejector 352 near the inner clamping seat 314 extends into the misalignment groove 3143, while the structure of the ejector 352 away from the inner clamping seat 314 moves horizontally away from the outer peripheral wall of the anti-collision space 318.

[0094] Therefore, after the square shell 91 and the square end cap 92 are welded, the ejection drive device 351 works to drive the ejector 352 to move upward. The ejection surface 3521 effectively covers the anti-collision space 318 in width to ensure effective contact between the ejection surface 3521 and the square shell 91, thereby ejecting the square shell 91 upward for unloading.

[0095] Specifically, the internal drive device 321 in this embodiment includes an internal lifting cylinder 3211 and a connecting rod 3212. The internal lifting cylinder 3211 is disposed on the upper side of the base 311 and is fixedly installed by bolts. The output shaft of the internal lifting cylinder 3211 is arranged facing upwards. The internal clamping seat 314 is located above the output shaft of the internal lifting cylinder 3211 and has a first through hole 3141 arranged vertically. The connecting rod 3212 passes through the first through hole 3141. The lower end of the connecting rod 3212 and the output shaft of the internal lifting cylinder 3211 are fixedly connected by a threaded connection. The upper end of the connecting rod 3212 and the bottom of the internal linkage lifting component 322 are fixedly connected by bolts. The diameter of the first through hole 3141 is slightly larger than the outer diameter of the connecting rod 3212 to prevent the movement of the connecting rod 3212 from being interfered with by the internal clamping seat 314. Therefore, the operation of the inner lifting cylinder 3211 can control the movement of the inner linkage lifting component 322 by driving the connecting rod 3212 to move up and down.

[0096] In addition, it includes two sets of guide components 36, which are disposed on both sides of the connecting rod 3212. Each guide component 36 includes a guide sleeve 361 and a guide rod 362. The guide sleeve 361 is clamped and positioned by the split inner clamping seat 314. The guide rod 362 is fixedly installed at the bottom of the inner linkage lifting component 322 by bolts, and the guide rod 362 is inserted downward into the guide sleeve 361 to cooperate in guiding and sliding, thereby improving the lifting stability of the inner linkage lifting component 322 and the inner clamping seat 314.

[0097] In addition, the top of the inner clamping seat 314 in this embodiment is provided with multiple elastic support members 37. The elastic support members 37 are arranged along the length direction of the inner clamping seat 314 and are fixed to the inner clamping seat 314 by bolts. The elastic support members 37 are used to provide a buffering effect by being impacted by the inner linkage lifting member 322 when the inner linkage lifting member 322 moves downward.

[0098] In addition, such as Figures 12-13As shown, it also includes four support components 38. Two support components 38 are provided on each of the two length sides of the inner clamping seat 314, and the two support components 38 on each length side of the inner clamping seat 314 are spaced apart along the length direction of the inner clamping seat 314. Each support component 38 includes an adjusting seat 381, a supporting seat 382, ​​and an adjusting bolt 383. The adjusting seat 381 is fixed to the outer surface of the inner clamping seat 314 by bolts, and the supporting seat 382 is slidably mounted vertically on a guide rail. The inner clamping seat 314 and the support seat 382 are located above the adjusting seat 381. The adjusting bolt 383 is threaded and passes through the adjusting seat 381. The adjusting bolt 383 is provided with a drive head 3831 below the adjusting seat 381 and a push part 3832 above the adjusting seat 381. In addition, the top of the support seat 382 is provided with an upward guide slope 3821 close to the inner clamping seat 314, and the support seat 382 is provided with a horizontal support surface 3822 below the guide slope 3821.

[0099] Therefore, 1. The square shell 91 is fitted onto the inner clamping seat 314 and faces downwards towards the support seat 382. Under the action of the guide inclined surface 3821, the position of the square shell 91 and the inner clamping seat 314 in the width direction is adjusted. After the adjustment is completed, it continues to fall onto the support surface 3822 to complete the loading. The square shell 91 after loading is initially positioned in the horizontal direction and accurately positioned in the vertical direction; 2. The setting of the adjusting bolt 383 allows the support seat 382 to be vertically adjusted to adapt to square shells 91 of different heights.

[0100] In addition, the inner clamping seat 314 is provided with a locking screw hole 3142, and the support seat 382 is provided with a vertically extending locking through hole 3823. The locking through hole 3823 is provided through the support seat 382 along the width direction of the inner clamping seat 314, so that after the support seat 382 is vertically adjusted, the locking bolt passes through the locking through hole 3823 and engages with the locking screw hole 3142. The head of the locking bolt is pressed against the support seat 382 to fix the support seat 382 with high strength and ensure the stability of the support seat 382.

[0101] Specifically, such as Figures 14-17 As shown, the end cap clamping device 5 includes a rotating component 51, a rotating pressure plate 52, and a connecting assembly 53. The rotating component 51 is fixedly mounted on the lifting seat 41 by bolts. A second rotating seat 511 is provided at the bottom of the rotating component 51, and the rotating pressure plate 52 is provided below the second rotating seat 511 through the connecting assembly 53.

[0102] Therefore, the end cap clamping device 5 presses the square end cap 92 downwards by the rotating pressure plate 52 below to ensure the fixation of the square end cap 92 and the square shell 91. When the rotating device 2 works to drive the shell clamping device 3 to rotate, the rotating part 51 realizes the rotation of the rotating pressure plate 52 to ensure the stability of the square end cap 92 and the square shell 91 before and after rotation and during rotation.

[0103] Specifically, the connecting assembly 53 includes a hinge ball 531, offset rods 532, and a tensioning spring 533. The hinge ball 531 is disposed between the second rotating seat 511 and the rotating pressure plate 52 to ball-hing the second rotating seat 511 and the rotating pressure plate 52. Specifically, the bottom of the second rotating seat 511 and the top of the rotating pressure plate 52 are both provided with arc-shaped grooves 534 slightly smaller than hemispherical, so that the hinge ball 531 is partially placed in the arc-shaped grooves 534 to achieve ball-hing. There are four offset rods 532, which are arranged in a square to form each offset rod 532 surrounding the outer periphery of the hinge ball 531. The second rotating seat 511 is positioned corresponding to each offset rod 532. An offset hole 535 is vertically through the offset rod 532. One end of each offset rod 532 faces downward and is fixedly connected to the rotating pressure plate 52 by a thread. Each offset rod 532 passes through the offset hole 535 with its upper end facing upward. An anti-detachment head 536 is provided above the offset hole 535 at the upper end of each offset rod 532. The diameter of the offset hole 535 is d1, and the outer diameter of the offset rod 532 is d2, where d1 > d2. There are four tension springs 533. Each tension spring 533 is sleeved on the outer circumference of the offset rod 532, and the upper and lower ends of the tension springs 533 respectively abut against the second rotating seat 511 and the rotating pressure plate 52 to reset the rotating pressure plate 52 to face downward.

[0104] Therefore, 1. The hinge ball 531 allows the rotating pressure plate 52 to be appropriately tilted relative to the second rotating seat 511, so that the rotating pressure plate 52 can be pressed parallel to the square end cap 92 to improve the stability of the pressing; 2. The cooperation of the offset rod 532 and the offset hole 535 allows the rotation range of the rotating pressure plate 52 to be controlled, so that the rotating pressure plate 52 can be deflected within a small range, and the tension spring 533 is used to ensure the stability of the connection between the rotating pressure plate 52 and the second rotating seat 511.

[0105] In addition, a positioning device 54 is included. The positioning device 54 includes a positioning drive device 541 and a positioning element 542. The positioning drive device 541 is specifically a cylinder. The positioning drive device 541 is fixed on the lifting seat 41 by bolts. The output shaft of the positioning drive device 541 is arranged facing forward. The positioning element 542 is arranged on the output shaft of the positioning drive device 541 so that the positioning drive device 541 drives the positioning element 542 to slide in the front and back direction. The front side of the positioning element 542 is provided with a positioning cone protrusion 543 with a forward pointed tip. The two ends of the length of the second rotating seat 511 are respectively provided with positioning cone recesses 544 that are adapted to the shape and size of the positioning cone protrusion 543. The positioning cone protrusion 543 is inserted into the positioning cone recesses 544 to position the second rotating seat 511 circumferentially.

[0106] Therefore, when the rotating pressure plate 52 is not pressing on the square end cap 92, the positioning drive device 541 is used to drive the positioning cone protrusion 543 to insert into the positioning cone recess 544 to prevent the rotating pressure plate 52 from rotating. When the rotating pressure plate 52 is pressing on the square end cap 92, the positioning drive device 541 is used to drive the positioning cone protrusion 543 to disengage from the positioning cone recess 544 so that the rotating pressure plate 52 can be welded at different positions as the square end cap 92 rotates, ensuring that the square end caps 92 processed in sequence are pressed stably and accurately.

[0107] Specifically, in this embodiment, the rotating component 51 uses a sleeve to house the bearing and the rotating shaft. The bearing rotatably mounts the rotating shaft inside the sleeve, and the rotating shaft extends downwards for rotational connection.

[0108] Specifically, such as Figure 18 As shown, each three-axis displacement device includes a left-right extending x-track 61, an x-carriage 62, an x-drive device, a front-back extending y-track 63, a y-carriage 64, a y-drive device, a vertically extending z-track 65, a z-carriage 66, and a z-drive device. The y-track 63 is mounted on the frame 1, the y-carriage 64 is slidably mounted on the y-track 63, and the y-drive device is used to drive the y-carriage 64 to slide. The x-track 61 is mounted on the y-carriage 64, the x-carriage 62 is slidably mounted on the x-track 61, and the x-drive device is used to drive the x-carriage 62 to slide. The z-track 65 is mounted on the x-carriage 62, the z-carriage 66 is slidably mounted on the z-track 65, and the z-drive device is used to drive the z-carriage 66 to slide. The welding head 67 is mounted on the z-carriage 66.

[0109] Therefore, by using the x-track 61, the welding head 67 can move closer to or further away from the square shell 91, thus switching between welding the length side and the width side of the square shell 91 and the square end cap 92. By using the y-track 63, the welding head 67 can move in a straight line along the intersection of the square shell 91 and the square end cap 92 to form a straight weld. By using the z-track 65, the welding head 67 can be vertically adjusted to weld square shells 91 of different heights.

[0110] In this embodiment, the lifting device 4, the x-drive device, the y-drive device, and the z-drive device are all driven by a combination of motor, lead screw, and nut.

[0111] In addition, this embodiment also discloses an automatic welding method for a square shell and end cap, the specific steps of which include:

[0112] S1: The square housing 91 is fitted downwards onto the outer periphery of the inner clamping assembly 32, such that the inner clamping plate 323 is on the inner periphery of the square housing 91 and close to the upper end of the square housing 91, and the outer clamping plate 332 is on the outer periphery of the square housing 91 and close to the upper end of the square housing 91; wherein, S1 specifically includes:

[0113] S11: The square shell 91 is fed downwards so that the lower end of the square shell 91 passes through the space between the inner clamping plate 323 and the outer clamping plate 332 and the anti-collision space 318 in sequence during the downward process, and is guided in the left and right directions by the guide slope 3821.

[0114] S12: The square shell 91 falls onto the support surface 3822 and is loaded with material under the support of the four support surfaces 3822;

[0115] S2: The inner drive device 321 operates to drive the inner linkage lifting component 322 to move downward, causing the inner clamping plates 323 to move away from each other and press against the inner peripheral wall of the square shell 91. Simultaneously, the outer drive devices 331 operate to drive the outer clamping plates 332 to move closer to each other and press against the outer peripheral wall of the square shell 91, so that the inner and outer clamping plates 323 and 332 achieve the inner and outer clamping of the square shell 91; wherein, S2 specifically includes:

[0116] S21: The inner lifting cylinder 3211 works to move downward through the connecting rod 3212, thereby driving the inner linkage lifting component 322 to move downward. In this way, with the cooperation of the slide rail structure 324, the inner clamping plates 323 move away from each other and press against the inner peripheral wall of the square shell 91. Simultaneously, the outer driving devices 331 work to drive the outer clamping plates 332 to move closer to each other and press against the outer peripheral wall of the square shell 91, so that the inner and outer clamping of the square shell 91 is achieved through the inner clamping plates 323 and the outer clamping plates 332.

[0117] S3: Place the square end cap 92 on the upper end of the square housing 91 and cover the upper end of the square end cap 92;

[0118] S4: The lifting device 4 operates to drive the lifting seat 41 to move downwards, thereby causing the end cover clamping device 5 to press downwards onto the square end cover 92, ensuring the fixation of the square housing 91 and the square end cover 92; wherein, S4 specifically includes:

[0119] S41: The lifting device 4 works to drive the lifting seat 41 to move downward, thereby causing the end cover clamping device 5 to move downward, and causing the rotating pressure plate 52 to press on the square end cover 92 to ensure the fixation of the square shell 91 and the square end cover 92.

[0120] S42: The positioning drive device 541 operates to disengage the positioning cone protrusion 543 from the positioning cone recess 544, thereby releasing the restriction on the circumferential rotation of the rotating pressure plate 52.

[0121] S5: Two welding devices 6 operate to weld the two longitudinal sides of the square housing 91 and the square end cap 92 at their intersection; wherein, S5 specifically includes:

[0122] S51: By adjusting the sliding of the x-carriage 62 on the x-track 61 and the sliding of the z-carriage 66 on the z-track 65, the two welding heads 67 are moved to one end of the intersection of the long side of the square housing 91 and the square end cap 92, respectively.

[0123] S52: The y-carriage 64 slides on the y-track 63, and the welding head 67 works to weld the square housing 91 and the square end cap 92 at the intersection of their length sides;

[0124] S53: By adjusting the sliding of the x-carriage 62 on the x-track 61 and the sliding of the z-carriage 66 on the z-track 65, the two welding heads 67 are moved away from the square shell 91 respectively;

[0125] S6: The rotating device 2 works to drive the housing clamping device 3 to rotate 90° clockwise. Simultaneously, the square housing 91, the square end cap 92, and the rotating pressure plate 52 rotate 90° in conjunction, so that the square housing 91 and the square end cap 92 change from the length side facing left and right to the width side facing left and right.

[0126] S7: Two welding devices 6 operate to weld the two width sides of the square housing 91 and the square end cap 92 at their intersection; wherein, S7 specifically includes:

[0127] S71: By adjusting the sliding of the x-carriage 62 on the x-track 61 and the sliding of the z-carriage 66 on the z-track 65, the two welding heads 67 are moved to one end of the intersection of the square housing 91 and the square end cap 92 on the width side, respectively.

[0128] S72: The y-carriage 64 slides on the y-track 63, and the welding head 67 works to weld the width side of the square housing 91 and the square end cap 92 together;

[0129] S73: By adjusting the sliding of the x-carriage 62 on the x-track 61 and the sliding of the z-carriage 66 on the z-track 65, the two welding heads 67 are moved away from the square shell 91 respectively;

[0130] S8: The lifting device 4 operates to drive the lifting seat 41 to move upward, thereby releasing the end cover clamping device 5 from pressing the square end cover 92; wherein, S8 specifically includes:

[0131] S81: The rotating device 2 works to drive the housing clamping device 3 to rotate counterclockwise by 90°. Simultaneously, the square housing 91, the square end cap 92, and the rotating pressure plate 52 rotate in conjunction with each other by 90°, so that the square housing 91 and the square end cap 92 change from the width side facing left and right to the length side facing left and right.

[0132] S82: The positioning drive device 541 operates to make the positioning cone protrusion 543 insert into the positioning cone recess 544 and disengage, so as to restrict the circumferential rotation of the rotating pressure plate 52.

[0133] S83: The lifting device 4 works to drive the lifting seat 41 to move upward, thereby causing the end cover clamping device 5 to move upward, thus releasing the pressure of the rotating pressure plate 52 on the square end cover 92.

[0134] S9: The inner drive device 321 operates to drive the inner linkage lifting component 322 to move upward, thereby causing the inner clamping plates 323 to move closer to each other. Simultaneously, the outer drive devices 331 operate to drive the outer clamping plates 332 to move away from each other, thereby releasing the inner and outer clamping plates 323 and 332 from the inner and outer clamping of the square shell 91. Specifically, S9 includes:

[0135] S91: The inner lifting cylinder 3211 works to drive the inner linkage lifting component 322 to move upward through the connecting rod 3212, thereby enabling the inner clamping plates 323 to move closer to each other in cooperation with the slide rail structure 324 to release the pressure on the inner peripheral wall of the square shell 91. Simultaneously, the outer driving devices 331 work to drive the outer clamping plates 332 to move away from each other to release the pressure on the outer peripheral wall of the square shell 91.

[0136] S10: The square housing 91 is disengaged from the inner clamping assembly 32 with the upper side facing out to complete the unloading; wherein, S10 specifically includes:

[0137] S101: The ejection drive device 351 operates to drive the ejector 352 to move upward, so that the ejection surface 3521 pushes the bottom of the square housing 91 upward to push the square housing 91 upward.

[0138] S102: The air source vents to the air nozzle 345 to pressurize the area between the square end cap 92 and the inner cover plate 316 when the ejector 352 pushes the square housing 91 upwards, so that the welded square housing 91 and square end cap 92 can be unloaded more smoothly.

[0139] In addition, if the four corners of the welded square shell 91 and square end cap 92 are arc-shaped, S52 and S53 should also include: S521: By the synchronous sliding of the y slide 64 on the y track 63 and the sliding of the x slide 62 on the x track 61, the welding head 67 can move in an arc shape without the shell clamping device 3 rotating, so that the welding head 67 can weld the arc-shaped corners of the square shell 91 and square end cap 92.

[0140] Similarly, between S72 and S73, the following should also be included: S721: By the synchronous sliding of the y-slide 64 on the y-track 63 and the sliding of the x-slide 62 on the x-track 61, the welding head 67 can move in an arc shape without the housing clamping device 3 rotating, so that the welding head 67 can weld the arc-shaped corners of the square housing 91 and the square end cap 92.

[0141] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic welding equipment for a square shell and end caps, characterized in that, include: A housing clamping device (3) includes a mounting base (31), an inner clamping assembly (32), and an outer clamping assembly (33). The inner clamping assembly (32) is disposed on the mounting base (31) and includes an inner drive device (321), an inner linkage lifting member (322), and multiple inner clamping plates (323). The inner drive device (321) is used to drive the inner linkage lifting member (322) to slide up and down. Each of the inner clamping plates (323) is arranged circumferentially on the outer periphery of the inner linkage lifting member (322), and each of the inner clamping plates (323) slides horizontally on the mounting base (31). A space is provided between the inner linkage lifting member (322) and each of the inner clamping plates (323). An inclined slide rail structure (324) is provided so that the inner clamping plates (323) are driven to move away from or closer to each other by the lifting of the inner linkage lifting member (322). The outer clamping assembly (33) is provided on the mounting base (31). There are multiple outer clamping assemblies (33). Each outer clamping assembly (33) is arranged circumferentially around the outer periphery of the inner clamping assembly (32). Each outer clamping assembly (33) includes an outer driving device (331) and an outer clamping plate (332). The outer clamping plate (332) is slidably disposed on the mounting base (31) in the horizontal direction. The outer driving device (331) is used to drive the outer clamping plate (332) to slide. The outer clamping plate (332) and the inner clamping plate (323) are arranged opposite to each other. Rotating device (2), the housing clamping device (3) is installed on the rotating device (2) to drive the housing clamping device (3) to rotate 90°; The welding device (6) includes three-axis displacement devices located on opposite sides of the housing clamping device (3), and each of the three-axis displacement devices is equipped with a welding head (67). The welding gap between the edge of the upper port of the square housing (91) on the housing clamping device (3) and the edge of the square end cap (92) corresponds to the position of the welding energy emission part axis of the welding head (67). The end cap clamping device (5) and the lifting device (4) are respectively located above the housing clamping device (3) and installed on the lifting device (4).

2. The automatic welding equipment for square shells and end caps according to claim 1, characterized in that: The mounting base (31) includes a base (311), an outer clamping seat (312), an outer lifting rod (313), an inner clamping seat (314), an inner lifting rod (315), and an inner cover plate (316). The lower end of the outer lifting rod (313) is connected to the base (311), and the upper end of the outer lifting rod (313) is connected to the outer clamping seat (312). Each of the outer clamping components (33) is disposed on the upper side of the outer clamping seat (312). The bottom of the inner clamping seat (314) is fixedly connected to the base (311). The lower end of the inner lifting rod (315) is connected to the inner clamping seat (314). The upper end of the outer lifting rod (313) is connected to the inner cover plate (316), and an action space (317) is formed between the inner clamping seat (314) and the inner cover plate (316). Each inner clamping plate (323) is positioned vertically by the inner clamping seat (314) and the inner cover plate (316). The inner linkage lifting component (322) moves up and down in the action space (317). The outer clamping seat (312) is arranged in a ring and surrounds the outer periphery of the inner clamping seat (314). An anti-collision space (318) is provided between the outer clamping seat (312) and the inner clamping seat (314).

3. The automatic welding equipment for square shells and end caps according to claim 2, characterized in that: The internal drive device (321) includes an internal lifting cylinder (3211) and a connecting rod (3212). The internal lifting cylinder (3211) is disposed on the base (311). The internal clamping seat (314) is provided with a first through hole (3141). The connecting rod (3212) passes through the first through hole (3141). The lower end of the connecting rod (3212) is connected to the output shaft of the internal lifting cylinder (3211), and the upper end of the connecting rod (3212) is connected to the bottom of the internal linkage lifting component (322). It also includes two sets of air blowing assemblies (34), which are disposed on both sides of the connecting rod (3212). Each air blowing assembly (34) includes a channel seat (344) disposed in the action space (317) and an air blowing nozzle (345) disposed on the inner clamping seat (314). The inner clamping seat (314) is provided with a vertically penetrating first channel (341), the channel seat (344) is provided with a vertically penetrating second channel (342), and the inner cover plate (31) is provided with a second channel (342). 6) A vertically penetrating third channel (343) is provided on the upper part, and the lower end of the second channel (342) is connected to the upper end of the first channel (341), the upper end of the second channel (342) is connected to the lower end of the third channel (343), the blowing nozzle (345) is connected to the lower end of the first channel (341), the internal linkage lifting component (322) is vertically penetrating with a second through hole (3221), and the channel seat (344) passes through the second through hole (3221).

4. The automatic welding equipment for square shells and end caps according to claim 2, characterized in that: It also includes two sets of ejection assemblies (35), which are disposed on both sides of the inner clamping seat (314). Each ejection assembly (35) includes an ejection drive device (351) and an ejector (352). The ejection drive device (351) is disposed at the bottom of the outer clamping seat (312), and the ejector (352) is disposed on the output shaft of the ejection drive device (351). The ejector (352) is located below the anti-collision space (318) and has an ejection surface (3521). The width of the anti-collision space (318) is k1, and the width of the ejection surface (3521) is k2, wherein k1 > k2.

5. The automatic welding equipment for square shells and end caps according to claim 3, characterized in that: It also includes two sets of guide components (36), which are disposed on both sides of the connecting rod (3212). Each guide component (36) includes a guide sleeve (361) disposed on the inner clamping seat (314) and a guide rod (362) disposed on the inner linkage lifting member (322). The guide sleeve (361) and the guide rod (362) are fitted together. The top of the inner clamping seat (314) and / or the bottom of the inner cover plate (316) are provided with elastic support members (37), which are used to deform under the impact of the inner linkage lifting member (322) when the inner linkage lifting member (322) moves upward or downward to provide a buffering effect. It also includes multiple support components (38), with at least two of the support components (38) disposed on both sides of the inner clamping seat (314). Each support component (38) includes an adjusting seat (381), a supporting seat (382), and an adjusting bolt (383). The adjusting seat (381) is fixedly disposed on the inner clamping seat (314), and the supporting seat (382) is vertically slidably disposed on the inner clamping seat (314), with the supporting seat (382) located above the adjusting seat (381). The adjusting bolt (383) 383) The adjusting seat (381) is threaded and passes through it. The adjusting bolt (383) is provided with a driving head (3831) below the adjusting seat (381) and a pushing part (3832) above the adjusting seat (381). The top of the support seat (382) is provided with an upward-facing guide slope (3821) close to the inner clamping seat (314). The support seat (382) is provided with a horizontal support surface (3822) below the guide slope (3821).

6. The automatic welding equipment for square shells and end caps according to claim 1, characterized in that: The lifting device (4) is provided with a lifting seat (41), which is vertically sliding. The end cap clamping device (5) includes a rotating component (51), a rotating pressure plate (52), and a connecting assembly (53). The rotating component (51) is disposed on the lifting seat (41), and the rotating component (51) is provided with a second rotating seat (511). The rotating pressure plate (52) is disposed below the second rotating seat (511) through the connecting assembly (53).

7. The automatic welding equipment for square shells and end caps according to claim 6, characterized in that: The connecting assembly (53) includes a hinge ball (531), an offset rod (532), and a tensioning spring (533). The hinge ball (531) is disposed between the second rotating seat (511) and the rotating pressure plate (52) to ball-hing the second rotating seat (511) and the rotating pressure plate (52). There are multiple offset rods (532), each of which surrounds the outer periphery of the hinge ball (531). The second rotating seat (511) is provided with an offset hole (535) vertically through each offset rod (532). One end of each offset rod (532) faces downward and is connected to the rotating pressure plate (52). The offset rods (532) are fixedly connected and pass through the offset holes (535) with their upper ends facing upwards. Each offset rod (532) has an anti-detachment head (536) above the offset hole (535). The diameter of the offset hole (535) is d1, and the outer diameter of the offset rod (532) is d2, where d1 > d2. There are multiple tension springs (533). Each tension spring (533) is sleeved on the outer periphery of the offset rod (532), and the upper and lower ends of the tension springs (533) abut against the second rotating seat (511) and the rotating pressure plate (52) respectively to reset the rotating pressure plate (52) downwards.

8. The automatic welding equipment for square shells and end caps according to claim 6, characterized in that: It also includes a positioning device (54), which includes a positioning drive device (541) and a positioning member (542). The positioning drive device (541) is disposed on the lifting seat (41), and the positioning member (542) is disposed on the output shaft of the positioning drive device (541) so that the positioning drive device (541) drives the positioning member (542) to slide horizontally. The positioning member (542) is provided with a positioning cone protrusion (543), and the second rotating seat (511) is provided with a positioning cone recess (544). The positioning cone protrusion (543) is inserted into the positioning cone recess (544) so ​​that the second rotating seat (511) is circumferentially positioned.

9. The automatic welding equipment for square shells and end caps according to claim 1, characterized in that: Each of the three-axis displacement devices includes an x-track (61), an x-carriage (62), an x-drive device, a y-track (63), a y-carriage (64), a y-drive device, a z-track (65), a z-carriage (66), and a z-drive device. The y-carriage (64) is slidably disposed on the y-track (63). The y-drive device is used to drive the y-carriage (64) to slide. The x-track (61) is disposed on the y-carriage (64). The x-carriage (62) is slidably disposed on the x-track (61). The x-drive device is used to drive the x-carriage (62) to slide. The z-track (65) is disposed on the x-carriage (62). The z-carriage (66) is slidably disposed on the z-track (65). The z-drive device is used to drive the z-carriage (66) to slide. The welding head (67) is disposed on the z-carriage (66).

10. An automatic welding method for a square shell and end cap, used to weld a square end cap (92) to the upper end of a square shell (91) with openings at both the top and bottom, characterized in that, The automatic welding equipment for square shells and end caps as described in any one of claims 1-9 includes the following specific steps: S1: Place the square shell (91) downwards on the outer periphery of the inner clamping assembly (32), so that the inner clamping plate (323) is on the inner periphery of the square shell (91) and close to the upper end of the square shell (91), and the outer clamping plate (332) is on the outer periphery of the square shell (91) and close to the upper end of the square shell (91). S2: The inner drive device (321) works to drive the inner linkage lifting component (322) to move downward, thereby causing the inner clamping plates (323) to move away from each other and press against the inner peripheral wall of the square shell (91). Simultaneously, the outer drive devices (331) work to drive the outer clamping plates (332) to move closer to each other and press against the outer peripheral wall of the square shell (91), so that the inner and outer clamping of the square shell (91) is achieved through the inner clamping plates (323) and the outer clamping plates (332). S3: Place the square end cap (92) on the upper end of the square shell (91) and cover the upper end of the square end cap (92); S4: The lifting device (4) works to drive the lifting seat (41) to move downwards, thereby causing the end cap clamping device (5) to press downwards onto the square end cap (92) to ensure the fixation of the square shell (91) and the square end cap (92); S5: Two welding devices (6) work to weld the square housing (91) and the square end cap (92) at the intersection of their two sides; S6: The rotating device (2) operates to drive the housing clamping device (3) to rotate 90°; S7: Two welding devices (6) work to weld the other two sides of the square shell (91) and the square end cap (92); S8: The lifting device (4) works to drive the lifting seat (41) to move upward and release the end cap clamping device (5) from pressing the square end cap (92); S9: The inner drive device (321) works to drive the inner linkage lifting component (322) to move upward, thereby causing the inner clamping plates (323) to move closer to each other. Simultaneously, the outer drive devices (331) work to drive the outer clamping plates (332) to move away from each other, thereby releasing the inner and outer clamping of the square shell (91) by the inner clamping plates (323) and the outer clamping plates (332). S10: Remove the square housing (91) upwards from the inner clamping assembly (32) to complete the unloading.

Images