Automatic assembly welding tool and welding method for a cabinet

Abstract

The application discloses an automatic assembling and welding tool and a welding method for a cabinet, which are used for welding and assembling a plurality of cabinet plates into a cabinet, and comprise a frame structure and a PLC controller, wherein the PLC controller is installed on the frame structure; a feeding mechanism is arranged on the frame structure and used for feeding the cabinet plates; and the feeding mechanism comprises a walking assembly and a lifting cylinder installed on the walking assembly. Compared with the prior art, the tool is linked with the feeding mechanism, the rotary limiting tool and the welding robot through the PLC controller, sequentially feeds a plurality of cabinet plates, integrally forms a limiting part and adjusts a rotary position, avoids complicated steps in a traditional process which depend on a transfer robot, completes the overall welding of the cabinet at one time, effectively shortens a welding period, and simultaneously reduces the length of a production line through the integrated frame structure, and significantly improves space utilization.

Description

Technical Field

[0001] This invention relates to the field of automatic welding equipment technology, and in particular to an automatic assembly welding fixture and welding method for cabinets. Background Technology

[0002] In the field of server rack manufacturing, existing automated welding production lines have widely adopted metal cutting and welding equipment such as plasma arc welding machines as the core welding method. Utilizing their concentrated energy, strong penetration, and suitability for single-sided welding and double-sided forming of medium-thick plates, they complete the connection operations between server rack panels. However, limited by traditional production organization models, even with advanced plasma arc welding equipment, the supporting process flow still mainly adopts a decentralized operation method of loading material piece by piece, aligning sequentially, and welding in sections. Specifically, firstly, a transfer robot transports and loads individual server rack panels one by one to a dedicated welding fixture station; subsequently, after each loading, the system needs to repeatedly perform precise alignment operations between the individual server rack panel and the assembled server rack panel already positioned in the fixture; after the alignment is confirmed to be correct, a welding robot performs local welding operations on the current docking area.

[0003] While this piece-by-piece feeding, sequential alignment, and segmented welding method can meet basic welding requirements to some extent, it has certain drawbacks. Firstly, because the welding operation is broken down into multiple independent steps, continuous and integrated high-efficiency welding cannot be achieved, leading to a significant reduction in overall welding efficiency. Secondly, to accommodate repeated transfer and positioning operations, the entire welding production line must have a long material transport path, which not only increases the complexity of the equipment layout but also significantly increases the footprint of the entire welding system, thus creating a dual constraint on space utilization and capacity improvement. Therefore, to address the problems of the existing technology, an automated cabinet assembly welding fixture is proposed, capable of automatically feeding, positioning and forming the cabinet shell from multiple cabinet panels, and welding the entire cabinet shell, thereby improving overall welding efficiency and space utilization. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an automatic assembly and welding fixture and welding method for cabinets.

[0005] The objective of this invention is achieved through the following technical solution: an automatic assembly and welding fixture for server racks, which welds and assembles multiple rack panels into a rack, including a frame structure and a PLC controller, wherein the PLC controller is mounted on the frame structure.

[0006] A feeding mechanism is provided on the frame structure for feeding the cabinet panel. The feeding mechanism includes a walking component, a lifting cylinder installed on the walking component, a separation component installed below the lifting cylinder, and a rotating adsorption component installed below the separation component.

[0007] A guide rail mechanism is used to adjust the position of the feeding mechanism;

[0008] A lifting mechanism, located between the guide rail mechanism and the frame structure, is used to adjust the height of the loading mechanism;

[0009] A rotary limiting fixture is provided on the frame structure. The rotary limiting fixture includes a cam indexer installed on the frame structure and a fixture assembly connected to the cam indexer. It is used to limit and fix the cabinet plate transferred by the feeding mechanism and to adjust its processing position.

[0010] A welding robot, mounted on the frame structure, is used to perform welding operations on multiple cabinet panels;

[0011] An adjustment fixture, installed on the frame structure, is used to adjust the position of the welding robot.

[0012] According to the automatic assembly welding fixture for a cabinet, the frame structure includes a support frame one, a welding worktable fixedly connected to the top of the support frame one, a support frame two fixedly connected to the support frame one, and a support plate fixedly connected to the support frame one. The cam indexer is installed on the support plate, and the fixture assembly is rotatably connected to the welding worktable.

[0013] According to the automatic assembly and welding fixture for a cabinet, the lifting mechanism includes a lifting cylinder and a limiting guide assembly that are rectangularly fixedly installed on the welding worktable.

[0014] According to the automatic assembly welding fixture for a cabinet, the limiting guide component includes a support slide fixedly installed on the welding worktable and a sliding column slidably connected to the inner wall of the support slide.

[0015] According to the automatic assembly and welding fixture for a cabinet, the guide rail mechanism includes an electric linear slide rail installed on the top of the output end of the lifting cylinder and the top of the sliding column, and a limiting slide rail slidably connected to the electric linear slide rail.

[0016] According to the automatic assembly and welding fixture for a cabinet, the walking assembly includes a driving wheel and a driven wheel that cooperate with the inner wall of the limiting slide, a walking frame for supporting the driving wheel and the driven wheel, and a drive motor connected to the driving wheel, wherein the lifting cylinder is mounted on the walking frame.

[0017] According to the automatic assembly and welding fixture for a cabinet, the separation component includes a fixing plate fixedly installed on one side wall of the lifting cylinder, a locking cylinder installed on the fixing plate, and a support sleeve movably connected to the outer wall of the output end of the lifting cylinder. The output end of the locking cylinder movably passes through the support sleeve and the output end of the lifting cylinder.

[0018] According to the automatic assembly and welding fixture for a cabinet, the rotary adsorption assembly includes a second drive motor fixedly installed on the outer wall of the support sleeve and an electric suction cup rotatably connected to the output end of the second drive motor.

[0019] According to the automatic assembly and welding fixture for a cabinet, the fixture assembly includes a rotary table connected to the output end of the cam indexer, an I-plate fixedly connected to the middle of the rotary table, telescopic cylinders fixedly mounted on the I-plate in a rectangular array, a support fixedly mounted on the output end of the telescopic cylinders, a drive motor three fixedly mounted on one side wall of the support, and an electric suction cup two rotatably connected to the output end of the drive motor three.

[0020] A cabinet welding method, specifically including the following steps:

[0021] S1. Individual cabinet panels are sequentially conveyed to the welding worktable. The PLC controller controls the lifting cylinder to start, which drives the electric suction cup to descend and adsorb the cabinet panel. Then, it rises and, with the help of the drive motor and the walking component, moves the cabinet panel toward the rotating limit fixture.

[0022] S2. Using the rotational limiting fixture in conjunction with the rotational adsorption component of the feeding mechanism, the cabinet panel is limited and fixed: After the feeding mechanism moves the cabinet panel to the corresponding position, the second drive motor drives the first electric suction cup to rotate, so that the cabinet panel changes from horizontal to vertical. The lifting cylinder drives the cabinet panel to descend, and the telescopic cylinder pushes the second electric suction cup to stick to the cabinet panel to complete the limiting. Then, the first electric suction cup is unlocked and the feeding mechanism is reset. The second cabinet panel is limited and fixed on the other side in the same way.

[0023] S3. Drive the rotary table to rotate through the cam indexer, adjust the direction of the tooling components, and make the other two sets of telescopic cylinders consistent with the direction of the welding worktable. Repeat step S2 to complete the limiting of the third and fourth cabinet panels. The four cabinet panels form the cabinet shell, and the welding robot welds the connection.

[0024] S4. After the cabinet shell is welded, the feeding mechanism places the top cabinet plate onto the cabinet shell. The locking cylinder disengages from the support sleeve. The welding robot welds one connection point between the top cabinet plate and the cabinet shell. Then, the cam indexer adjusts the direction of the tooling components, causing the support sleeve to rotate on the outer wall of the lifting cylinder output end. The welding of the remaining connections is completed in sequence to form the cabinet shell.

[0025] S5. The output end of the locking cylinder extends into the support sleeve to connect to the lifting cylinder. The lifting cylinder drives the cabinet shell to rise, and the cabinet shell is unloaded to the welding workbench through the walking component.

[0026] S6. Flip the cabinet shell so that the top cabinet panel is facing down. Drive motor three drives electric suction cup two to rotate so that its suction surface is facing up. The feeding mechanism feeds the cabinet shell onto electric suction cup two, and electric suction cup two adsorbs the bottom surface of the cabinet shell.

[0027] S7. The feeding mechanism feeds the internal cabinet panels into the cabinet shell. Through the cooperation of the separation component, lifting cylinder, cam indexer, tooling component and welding robot, the internal cabinet panels are welded to the cabinet shell to form the whole cabinet.

[0028] The above-mentioned solution has the following beneficial effects:

[0029] 1. By incorporating a feeding mechanism, lifting mechanism, rotation limiting mechanism, and welding robot, this fixture, compared to existing technologies, uses a PLC controller to link the feeding mechanism, rotation limiting fixture, and welding robot to achieve sequential feeding of multiple cabinet panels, overall forming limiting, and rotational orientation adjustment. This avoids the cumbersome steps of relying on transfer robots in traditional processes, allowing for the completion of the entire cabinet welding in one go, effectively shortening the welding cycle. At the same time, the integrated frame structure reduces the production line length and significantly improves space utilization.

[0030] 2. The rotary limiting fixture uses a cam indexer to adjust the cabinet position, and works with a telescopic cylinder and an electric suction cup to achieve stable positioning of the cabinet panel, avoiding positioning deviations caused by manual intervention; the lifting mechanism ensures smooth lifting of the guide rail mechanism through the limiting guide component, and the rotary adsorption component of the loading mechanism can flexibly adjust the posture of the cabinet panel, reducing the risk of deformation during transportation and improving the accuracy of welding parts and product consistency.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0033] Figure 1This is a schematic diagram of the overall structure of an automatic assembly and welding fixture for a cabinet according to the present invention;

[0034] Figure 2 This is a schematic diagram of the overall front view of an automatic assembly and welding fixture for a cabinet according to the present invention.

[0035] Figure 3 This is a schematic diagram of the feeding mechanism of an automatic assembly and welding fixture for a cabinet according to the present invention;

[0036] Figure 4 This is a schematic diagram of the support sleeve of an automatic assembly and welding fixture for a cabinet according to the present invention.

[0037] Figure 5 This is a schematic diagram of the rotating limiting fixture of an automatic assembly and welding fixture for a cabinet according to the present invention.

[0038] Figure 6 This is a schematic diagram of the frame structure of an automatic assembly and welding fixture for a cabinet according to the present invention.

[0039] Figure 7 This is a schematic diagram of the lifting mechanism of an automatic assembly and welding fixture for a cabinet according to the present invention.

[0040] Figure 8 This is a schematic diagram of the structure of a cabinet using an automatic assembly and welding fixture for a cabinet according to the present invention.

[0041] Figure 9 This is a welding flowchart of a welding method for a server rack according to the present invention.

[0042] Legend:

[0043] A. Cabinet panel; B. Cabinet; 1. Frame structure; 11. Support frame one; 12. Welding workbench; 13. Support frame two; 14. Support plate; 2. PLC controller; 3. Feeding mechanism;

[0044] 31. Walking assembly; 311. Drive wheel; 312. Driven wheel; 313. Walking frame; 314. Drive motor one; 32. Lifting cylinder; 33. Separation assembly; 331. Fixing plate; 332. Locking cylinder; 333. Support sleeve; 34. Rotary adsorption assembly; 341. Drive motor two; 342. Electric suction cup one; 4. Guide rail mechanism; 41. Electric linear slide rail; 42. Limiting slide rail; 5. Lifting mechanism; 51. Lifting cylinder; 52. Limiting guide assembly; 521. Supporting slide rail; 522. Sliding column; 6. Rotary limiting fixture; 61. Cam indexer; 62. Fixture assembly; 621. Rotary table; 622. I-beam plate; 623. Telescopic cylinder; 624. Support component; 625. Drive motor three; 626. Electric suction cup two; 7. Welding robot; 8. Adjustment fixture. Detailed Implementation

[0045] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Reference Figures 1-8 An automated assembly and welding fixture for server racks, which welds and assembles multiple rack panels A into rack B. (See also...) Figure 1 and Figure 2This fixture comprises a frame structure 1, a PLC controller 2, and a feeding mechanism 3, a guide rail mechanism 4, a lifting mechanism 5, a rotary limiting fixture 6, a welding robot 7, and an adjusting fixture 8, all mounted on the fixture. The PLC controller 2 is installed on the frame structure 1. All electrical components on the fixture are electrically connected to the PLC controller 2. The PLC controller 2 is used to automate the overall operation of the device. Through the linkage between the PLC controller 2 and the feeding mechanism 3, guide rail mechanism 4, lifting mechanism 5, rotary limiting fixture 6, welding robot 7, and adjusting fixture 8, the automatic feeding and conveying of multiple cabinet panels A is achieved. This fixture, which uses multiple cabinet panels A to form cabinet B, and then welds the resulting cabinet B together, offers a significant improvement over existing welding production lines. These lines are excessively long and rely heavily on transfer robots to sequentially transport cabinet panels A, followed by welding robots 7 welding the connecting parts of adjacent panels A one by one. This new fixture can sequentially feed multiple cabinet panels A, and after the cabinet B is fully formed, it is positioned. The orientation of cabinet B is then adjusted by rotating the positioning fixture 6, enabling welding operations at different connection points on cabinet B. This significantly improves welding efficiency, shortens the overall production line length, and increases space utilization.

[0049] Continue reading Figure 1 Welding robot 7, mounted on frame structure 1, is used to perform welding operations on multiple cabinet panels A. Adjustment fixture 8, also mounted on frame structure 1, is used to adjust the position of welding robot 7. Adjustment fixture 8 mainly consists of two adjustable electric guide rails, which can adjust the lateral and longitudinal positions of welding robot 7. Thus, within a certain range, the position of welding robot 7 can be adjusted according to the position of the cabinet B formed by the multiple cabinet panels A. It is easy to use. Welding robot 7 can weld the connection points of cabinet B formed by multiple cabinet panels A. It should be noted that welding robot 7 is existing technology. The plasma arc welding machine is integrated at the end of welding robot 7. The high temperature of the plasma arc melts the base material to achieve metallurgical bonding. It also has a control interface for communication and coordination with PLC controller 2 and welding robot 7. This equipment and supporting system belong to the manufacturing category of metal cutting and welding equipment such as plasma arc welding machines. It is mainly suitable for single-sided welding and double-sided forming of medium and thick plates of sheet metal cabinets B and box-type products, as well as full-position automated welding operations. Its working principle and control logic are relatively mature, so its working principle, structure and control logic will not be described in detail.

[0050] Continue reading Figure 6The frame structure 1 includes a support frame 11, a welding workbench 12 fixedly connected to the top of the support frame 11, a support frame 2 13 fixedly connected to the support frame 11, and a support plate 14 fixedly connected to the support frame 11. A cam indexer 61 is installed on the support plate 14, and a tooling assembly 62 is rotatably connected to the welding workbench 12. The frame structure 1 mainly serves as a support structure. It is made of steel and has good support performance. In addition, with the support feet, it can further improve the overall placement stability of the frame structure 1.

[0051] Continue reading Figure 7 The lifting mechanism 5, located between the guide rail mechanism 4 and the frame structure 1, is used to adjust the height of the loading mechanism 3. The lifting mechanism 5 includes a lifting cylinder 51 fixedly mounted in a rectangle on the welding workbench 12 and a limiting guide assembly 52. ​​The limiting guide assembly 52 includes a support slide 521 fixedly mounted on the welding workbench 12 and a sliding column 522 slidably connected to the inner wall of the support slide 521. When it is necessary to adjust the height of the guide rail mechanism 4 to facilitate the conveying of the transfer cabinet plate A, the lifting cylinder 51 is activated by the PLC controller 2. When the lifting cylinder 51 is activated, it drives the electric linear slide rail 41 to move vertically upward and downward through its output end. The bottom of the electric linear slide rail 41 is fixedly installed with the bottom of the sliding column 522. Thus, while the electric linear slide rail 41 is moving upward and downward, the sliding column 522 is driven to move inside the support slide rail 521. By relying on the cooperation between the sliding column 522 and the support slide rail 521, the lifting trajectory of the electric linear slide rail 41 can be limited and guided, thereby improving the lifting stability and smoothness of the electric linear slide rail 41.

[0052] The guide rail mechanism 4 is used to adjust the position of the feeding mechanism 3. The guide rail mechanism 4 includes an electric linear slide rail 41 installed on the top of the output end of the lifting cylinder 51 and the top of the sliding column 522, and a limiting slide rail 42 slidably connected to the electric linear slide rail 41. The electric linear slide rail 41 can adjust the front and rear longitudinal position of the cabinet plate A, and the limiting slide rail 42, in conjunction with the traveling component 31, can adjust the left and right lateral position of the cabinet plate A, so as to facilitate the conveying of the cabinet plate A to the rotating limiting fixture 6 to realize feeding.

[0053] The feeding mechanism 3, mounted on the frame structure 1, is used to feed the cabinet panel A. The feeding mechanism 3 includes a walking component 31, a lifting cylinder 32 mounted on the walking component 31, a separation component 33 mounted below the lifting cylinder 32, and a rotary adsorption component 34 mounted below the separation component 33. The walking component 31 includes a drive wheel 311 and a driven wheel 312 that cooperate with the inner wall of the limiting slide 42, a walking frame 313 for supporting the drive wheel 311 and the driven wheel 312, and a drive motor 31 connected to the drive wheel 311. 4. The lifting cylinder 32 is mounted on the walking frame 313; the separation assembly 33 includes a fixing plate 331 fixedly mounted on one side wall of the lifting cylinder 32, a locking cylinder 332 mounted on the fixing plate 331, and a support sleeve 333 movably connected to the outer wall of the output end of the lifting cylinder 32. The output end of the locking cylinder 332 movably passes through the support sleeve 333 and the output end of the lifting cylinder 32; the rotary adsorption assembly 34 includes a second drive motor 341 fixedly mounted on the outer wall of the support sleeve 333 and an electric suction cup 342 rotatably connected to the output end of the second drive motor 341.

[0054] The tooling can be used in conjunction with the equipment for conveying external cabinet panels A. The equipment for conveying external cabinet panels A sequentially transports individual cabinet panels A onto the welding worktable 12, positioning them below the loading mechanism 3. Once a single cabinet panel A is transported to the welding worktable 12, the lifting cylinder 32 is activated to drive the electric suction cup 342 towards the cabinet panel A, causing the suction surface of the electric suction cup 342 to contact the upper surface of the cabinet panel A. Then, the electric suction cup 342 is activated to ensure close contact and suction of the cabinet panel A. The lifting cylinder 32 is activated again... Electric suction cup 342 drives cabinet plate A to move upward. Then, PLC controller 2 controls drive motor 314 to start. Drive motor 314 drives drive wheel 311 to rotate through its output end. Drive wheel 311 rotates and rolls inside limit slide 42 due to friction between it and the inner wall of limit slide 42. Thus, the feeding mechanism 3 as a whole drives cabinet plate A to move in the direction of rotation limit fixture 6. Driven wheel 312 rolls inside limit slide 42 at the same time, realizing the feeding and transfer of cabinet plate A.

[0055] A rotary limiting fixture 6 is mounted on the frame structure 1. The rotary limiting fixture 6 includes a cam indexer 61 mounted on the frame structure 1 and a fixture assembly 62 connected to the cam indexer 61. It is used to limit and fix the cabinet plate A transferred by the feeding mechanism 3 and to adjust its processing position. The fixture assembly 62 includes a rotary table 621 connected to the output end of the cam indexer 61, an I-shaped plate 622 fixedly connected to the middle of the rotary table 621, a telescopic cylinder 623 fixedly mounted on the I-shaped plate 622 in a rectangular array, a support member 624 fixedly mounted on the output end of the telescopic cylinder 623, a drive motor 625 fixedly mounted on one side wall of the support member 624, and an electric suction cup 626 rotatably connected to the output end of the drive motor 625.

[0056] The rotary limiting fixture 6 can limit and position multiple cabinet panels A to form cabinet B. Then, the cam indexer 61 can adjust the processing direction of the formed cabinet B so that the welding robot 7 can perform welding operations at its connection. It is easy to use. The electric suction cup 626 can avoid deformation of the cabinet panel A.

[0057] A cabinet welding method, specifically including the following steps:

[0058] S1. A single cabinet plate A is sequentially transported to the welding workbench 12. The lifting cylinder 32 is started by the PLC controller 2 to drive the electric suction cup 342 to descend and adsorb the cabinet plate A. Then it rises and moves the cabinet plate A toward the rotary limiting fixture 6 with the help of the drive motor 314 and the walking component 31.

[0059] S2. Using the rotational limiting fixture 6 in conjunction with the rotational adsorption component 34 of the feeding mechanism 3, the cabinet panel A is limited and fixed: After the feeding mechanism 3 moves the cabinet panel A to the corresponding position, the second drive motor 341 drives the first electric suction cup 342 to rotate, so that the cabinet panel A changes from a horizontal to a vertical state. The lifting cylinder 32 drives the cabinet panel A to descend, and the telescopic cylinder 623 pushes the second electric suction cup 626 to stick to the cabinet panel A to complete the limiting. Then, the first electric suction cup 342 is unlocked and the feeding mechanism 3 is reset. The second cabinet panel A is limited and fixed on the other side in the same way.

[0060] S3. Drive the rotary table 621 to rotate through the cam indexer 61, adjust the direction of the tooling assembly 62, so that the other two sets of telescopic cylinders 623 are aligned with the direction of the welding worktable 12, repeat step S2 to complete the limiting of the third and fourth cabinet panels A, the four cabinet panels A form the cabinet B shell, and the welding robot 7 welds the connection.

[0061] S4. After the welding of the cabinet B shell is completed, the feeding mechanism 3 feeds the top cabinet plate A onto the cabinet B shell, the locking cylinder 332 disengages from the support sleeve 333, the welding robot 7 welds a connection point between the top cabinet plate A and the cabinet B shell, and then the cam indexer 61 adjusts the direction of the tooling assembly 62, driving the support sleeve 333 to rotate on the outer wall of the output end of the lifting cylinder 32, and the welding of the remaining connection points is completed in sequence to form the cabinet B shell.

[0062] S5. The output end of the locking cylinder 332 extends into the support sleeve 333 and connects to the lifting cylinder 32. The lifting cylinder 32 drives the cabinet B shell to rise, and the cabinet B shell is unloaded to the welding workbench 12 through the walking component 31.

[0063] S6. Flip the cabinet B shell so that the top cabinet plate A faces down. Drive motor 3 625 drives electric suction cup 2 626 to rotate so that its suction surface faces up. The feeding mechanism 3 feeds the cabinet B shell onto electric suction cup 2 626, and electric suction cup 2 626 adsorbs the bottom surface of the cabinet B shell.

[0064] S7. The feeding mechanism 3 feeds the internal cabinet panel A into the shell of the cabinet B. Through the cooperation of the separation component 33, the lifting cylinder 32, the cam indexer 61, the tooling component 62 and the welding robot 7, the internal cabinet panel A is welded to the shell of the cabinet B, and finally the cabinet B is formed as a whole.

[0065] Working principle: First, the loading mechanism 3 loads cabinet panel A. The tooling can be used in conjunction with the external conveyor for cabinet panel A. The external conveyor for cabinet panel A sequentially transports individual cabinet panels A onto the welding worktable 12, positioning them below the loading mechanism 3. Once a single cabinet panel A is transported onto the welding worktable 12, the lifting cylinder 32 is activated to drive the electric suction cup 342 towards the cabinet panel A, causing the suction surface of the electric suction cup 342 to contact the upper surface of the cabinet panel A. Then, the electric suction cup 342 is activated to... It closely adheres to and adsorbs cabinet plate A. The lifting cylinder 32 is activated again to drive cabinet plate A upward through electric suction cup 342. Then, the PLC controller 2 controls the drive motor 314 to start. The drive motor 314 drives the drive wheel 311 to rotate through its output end. The drive wheel 311 rotates and rolls inside the limit slide 42 through the friction between it and the inner wall of the limit slide 42. Thus, the feeding mechanism 3 as a whole drives cabinet plate A to move in the direction of the rotating limit fixture 6.

[0066] The second step involves using the rotary limiting fixture 6 in conjunction with the rotary adsorption component 34 of the feeding mechanism 3 to limit and fix a single cabinet plate A. A detailed explanation is provided using two sets of horizontally symmetrical telescopic cylinders 623 limiting two cabinet plates A as an example. Specifically, after the feeding mechanism 3 moves one cabinet plate A towards the rotary limiting fixture 6, the drive motor 341 is activated, driving the electric suction cup 342 to rotate through its output end. The electric suction cup 342 rotates, causing the cabinet plate A to rotate from a horizontal to a vertical position, thus making the cabinet plate A perpendicular to the welding worktable 12. Then, the lifting cylinder 32 is activated again, driving the cabinet plate A to descend through its output end. Then, the telescopic cylinder 623 is activated, driving the electric suction cup 626 to move to one side of the cabinet plate A through its output end, so that the adsorption surface of the electric suction cup 626 is tightly attached to the cabinet plate A. Thus, through the telescopic cylinder 623 and the electric suction cup 626, the cabinet plate A is fixed in place. First, one cabinet panel A is fixed in place. Then, the electric suction cup 342 is unlocked, and the loading mechanism 3 is driven to return to its original position. Then, the loading mechanism 3 repeats the above operation to move the other cabinet panel A to one side of another set of telescopic cylinders 623. Then, the drive motor 341 is started and drives the electric suction cup 342 to rotate through its output end. The rotation of the electric suction cup 342 drives the cabinet panel A to rotate from a horizontal state to a vertical state, so that the entire cabinet panel A is at a right angle to the welding workbench 12. Then, the lifting cylinder 32 is started and drives the cabinet panel A to descend through its output end. Then, the telescopic cylinder 623 is started and drives the electric suction cup 626 to move to one side of the cabinet panel A through its output end, so that the suction surface of the electric suction cup 626 is tightly attached to the cabinet panel A. Thus, the other cabinet panel A is fixed in place by a set of telescopic cylinders 623 and electric suction cup 626, thereby achieving the fixed position of the two cabinet panels A in the horizontal position.

[0067] The third step involves using the cam indexer 61 to adjust the direction of the tooling assembly 62, aligning the other two sets of telescopic cylinders 623 with the direction of the welding worktable 12, thereby limiting the other two cabinet panels A. The cam indexer 61 is started by the PLC controller 2, and the cam indexer 61 drives the rotary table 621 to rotate through its output end. The rotation of the rotary table 621 drives the tooling assembly 62 to rotate, thus adjusting the direction. Then, the operation of the second step is repeated to load and limit the other two cabinet panels A onto the tooling assembly 62, so that the four cabinet panels A form a cabinet B shell through the tooling assembly 62. The welding robot 7 is then used to weld the connection of the cabinet B shell.

[0068] Fourth step: After the welding of the cabinet B shell is completed, another cabinet panel A is fed onto the cabinet B shell through the feeding mechanism 3. Then, the locking cylinder 332 is activated to disengage its output end from the support sleeve 333. Then, the welding robot 7 is used to weld one connection between the top cabinet panel A and the cabinet B shell. After that, the cam indexer 61 is activated to adjust the direction of the tooling assembly 62. As the tooling assembly 62 rotates, it drives the support sleeve 333 to rotate synchronously on the outer wall of the output end of the lifting cylinder 32. Thus, the welding robot 7 is used to weld the connection between the top cabinet panel A and the cabinet B shell to form the cabinet B shell.

[0069] The fifth step is to use the loading mechanism 3 to unload the welded cabinet B shell: the output end of the locking cylinder 332 is inserted into the support sleeve 333, the support sleeve 333 is connected to the lifting cylinder 32, the lifting cylinder 32 drives the cabinet B shell to rise, and then the walking component 31 unloads the cabinet B shell onto the welding workbench 12.

[0070] The sixth step involves the staff flipping the outer shell of cabinet B so that the top cabinet panel A faces down. Then, the loading mechanism 3 is used again to load the outer shell of cabinet B onto the tooling assembly 62. Before this, the drive motor 3 625 is started to drive the electric suction cup 2 626 to rotate through its output end, so that the suction surface of the electric suction cup 2 626 faces up. Thus, the loading mechanism 3 loads the outer shell of cabinet B onto the electric suction cup 2 626, and the electric suction cup 2 626 is used to suction the bottom surface of the outer shell of cabinet B.

[0071] Step 7: Using the feeding mechanism 3, the internal cabinet panel A of cabinet B is fed into the interior of cabinet B. Then, through the cooperation of the separation component 33, lifting cylinder 32, cam indexer 61, tooling component 62, and welding robot 7, the internal cabinet panel A is welded to the interior of cabinet B, ultimately forming... Figure 8 The entire rack B shown.

[0072] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An automatic assembly and welding fixture for server racks, comprising welding and assembling multiple rack panels into a server rack, characterized in that, It includes a frame structure and a PLC controller, wherein the PLC controller is mounted on the frame structure: A feeding mechanism is provided on the frame structure for feeding the cabinet panel. The feeding mechanism includes a walking component, a lifting cylinder installed on the walking component, a separation component installed below the lifting cylinder, and a rotating adsorption component installed below the separation component. A guide rail mechanism is used to adjust the position of the feeding mechanism; A lifting mechanism, located between the guide rail mechanism and the frame structure, is used to adjust the height of the loading mechanism; A rotary limiting fixture is provided on the frame structure. The rotary limiting fixture includes a cam indexer installed on the frame structure and a fixture assembly connected to the cam indexer. It is used to limit and fix the cabinet plate transferred by the feeding mechanism and to adjust its processing position. A welding robot, mounted on the frame structure, is used to perform welding operations on multiple cabinet panels; An adjustment fixture, installed on the frame structure, is used to adjust the position of the welding robot.

2. The automatic assembly and welding fixture for a server rack according to claim 1, characterized in that, The frame structure includes a support frame one, a welding workbench fixedly connected to the top of the support frame one, a support frame two fixedly connected to the support frame one, and a support plate fixedly connected to the support frame one. The cam indexer is mounted on the support plate, and the tooling assembly is rotatably connected to the welding workbench.

3. The automatic assembly and welding fixture for a server rack according to claim 1, characterized in that, The lifting mechanism includes a lifting cylinder and a limiting guide assembly that are fixedly mounted in a rectangular shape on the welding workbench.

4. The automatic assembly and welding fixture for a server rack according to claim 3, characterized in that, The limiting and guiding assembly includes a support slide fixedly installed on the welding workbench and a sliding column slidably connected to the inner wall of the support slide.

5. The automatic assembly and welding fixture for a cabinet according to claim 4, characterized in that, The guide rail mechanism includes an electric linear slide rail installed at the top of the output end of the lifting cylinder and the top of the sliding column, and a limiting slide rail slidably connected to the electric linear slide rail.

6. The automatic assembly and welding fixture for a server rack according to claim 5, characterized in that, The walking assembly includes a driving wheel and a driven wheel that cooperate with the inner wall of the limiting slide, a walking frame for supporting the driving wheel and the driven wheel, and a drive motor connected to the driving wheel. The lifting cylinder is mounted on the walking frame.

7. The automatic assembly and welding fixture for a server rack according to claim 1, characterized in that, The separation assembly includes a fixing plate fixedly installed on one side wall of the lifting cylinder, a locking cylinder installed on the fixing plate, and a support sleeve movably connected to the outer wall of the output end of the lifting cylinder. The output end of the locking cylinder movably passes through the support sleeve and the output end of the lifting cylinder.

8. The automatic assembly and welding fixture for a server rack according to claim 7, characterized in that, The rotary adsorption assembly includes a second drive motor fixedly installed on the outer wall of the support sleeve and an electric suction cup rotatably connected to the output end of the second drive motor.

9. The automatic assembly and welding fixture for a server rack according to claim 1, characterized in that, The tooling assembly includes a rotary table connected to the output end of the cam indexer, an I-plate fixedly connected to the middle of the rotary table, telescopic cylinders fixedly mounted on the I-plate in a rectangular array, a support fixedly mounted on the output end of the telescopic cylinders, a drive motor three fixedly mounted on one side wall of the support, and an electric suction cup two rotatably connected to the output end of the drive motor three.

10. A cabinet welding method, employing the automatic assembly welding fixture for cabinets as described in any one of claims 1-9, specifically comprising the following steps: S1. Individual cabinet panels are sequentially conveyed to the welding worktable. The PLC controller controls the lifting cylinder to start, which drives the electric suction cup to descend and adsorb the cabinet panel. Then, it rises and, with the help of the drive motor and the walking component, moves the cabinet panel toward the rotating limit fixture. S2. Using the rotary limiting fixture in conjunction with the rotary adsorption component of the feeding mechanism, the cabinet panel is fixed in a limiting position: After the feeding mechanism moves the cabinet panel to the corresponding position, the second drive motor drives the first electric suction cup to rotate, so that the cabinet panel changes from a horizontal to a vertical position. The lifting cylinder drives the cabinet panel to descend, and the telescopic cylinder pushes the second electric suction cup to stick to the cabinet panel to complete the limiting position. Then, the first electric suction cup is unlocked and the feeding mechanism is reset. The second cabinet panel is fixed in the same way on the other side. S3. Drive the rotary table to rotate through the cam indexer, adjust the direction of the tooling components, and make the other two sets of telescopic cylinders consistent with the direction of the welding worktable. Repeat step S2 to complete the limiting of the third and fourth cabinet panels. The four cabinet panels form the cabinet shell, and the welding robot welds the connection. S4. After the cabinet shell is welded, the feeding mechanism places the top cabinet plate onto the cabinet shell. The locking cylinder disengages from the support sleeve. The welding robot welds one connection point between the top cabinet plate and the cabinet shell. Then, the cam indexer adjusts the direction of the tooling components, causing the support sleeve to rotate on the outer wall of the lifting cylinder output end. The welding of the remaining connections is completed in sequence to form the cabinet shell. S5. The output end of the locking cylinder extends into the support sleeve to connect to the lifting cylinder. The lifting cylinder drives the cabinet shell to rise, and the cabinet shell is unloaded to the welding workbench through the walking component. S6. Flip the cabinet shell so that the top cabinet panel is facing down. Drive motor three drives electric suction cup two to rotate so that its suction surface is facing up. The feeding mechanism feeds the cabinet shell onto electric suction cup two, and electric suction cup two adsorbs the bottom surface of the cabinet shell. S7. The feeding mechanism feeds the internal cabinet panels into the cabinet shell. Through the cooperation of the separation component, lifting cylinder, cam indexer, tooling component and welding robot, the internal cabinet panels are welded to the cabinet shell to form the whole cabinet.

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