Modularized extensible large vacuum laser welding equipment cavity structure

Abstract

The invention discloses a modular extensible large-scale vacuum laser welding equipment cavity structure, relates to the technical field of vacuum welding, and aims to solve the technical problem that the adaptability of the cavity structure of the existing vacuum laser welding equipment is poorer. The modular extensible large-scale vacuum laser welding equipment cavity structure comprises a main cavity, a plurality of auxiliary cavities and a tail cavity, the inner side walls of the main cavity, the auxiliary cavities and the tail cavity are all provided with sealing inserting grooves of the same structure, inner cavities of the multiple auxiliary cavities and the tail cavity form an expansion cavity, a sealing piece is arranged in the expansion cavity in a sliding mode, a welding cavity is formed between an inner cavity of the main cavity and the sealing piece, and the sealing piece is arranged in the welding cavity in a sliding mode. The sealing piece comprises a moving cylinder, a plurality of inserting plates and a plurality of arc plates are arranged on the side wall of the moving cylinder, and an inserting channel allowing the inserting plates to be embedded is formed between any two adjacent arc plates. The sealing structure has the advantage that the adjustability and the sealing reliability of the cavity space are both considered.

Description

Technical Field

[0001] This invention relates to the field of vacuum welding technology, and more specifically, to a modular and scalable cavity structure for a large-scale vacuum laser welding equipment. Background Technology

[0002] In the high-end manufacturing sector, vacuum laser welding technology, with its significant advantages such as oxidation-free welding process, high weld quality, and small heat-affected zone, is widely used in key industries such as aerospace, new energy vehicles, precision electronics, and high-end equipment to achieve high-value-added and high-reliability workpiece connections. One of the core components of vacuum laser welding equipment is the welding chamber. Its structural design directly determines the equipment's adaptability to workpieces of different specifications, the vacuum stability of the welding process, and the ease of operation, making it a key factor affecting welding efficiency and product quality.

[0003] Currently, most large-scale vacuum laser welding equipment on the market features an integral or semi-fixed cavity structure. The dimensions of the welding cavity are fixed during manufacturing, making it impossible to flexibly adjust the internal space according to the size of the workpiece. For large workpieces, a larger cavity needs to be customized; however, for welding standard workpieces, a fixed large cavity results in excessively long vacuum extraction times and significant energy waste. This leads to poor adaptability of existing vacuum laser welding equipment cavity structures. Therefore, we propose a modular and scalable cavity structure for large-scale vacuum laser welding equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a modular and scalable cavity structure for a large-scale vacuum laser welding equipment, so as to solve the technical problem of poor adaptability of the cavity structure of existing vacuum laser welding equipment.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a modular and scalable large-scale vacuum laser welding equipment cavity structure, including a main cavity, multiple auxiliary cavities, and a tail cavity. The main cavity and the auxiliary cavities are detachably and sealed together, two adjacent auxiliary cavities are detachably and sealed together, and the terminal auxiliary cavity is detachably and sealed together with the tail cavity. The inner walls of the main cavity, auxiliary cavities, and tail cavity are all provided with sealing slots of the same structure. The inner cavities of the multiple auxiliary cavities and the tail cavity form an expanded cavity. A sealing element is slidably arranged in the expanded cavity, and a welding cavity is formed between the inner cavity of the main cavity and the sealing element. The sealing element includes a movable... The movable cylinder has multiple insert plates and multiple arc plates arranged in a circular array slidingly fitted on its sidewalls. The multiple arc plates are capable of progressive expansion or synchronous contraction, and an insertion channel for insert plates to be embedded is formed between any two adjacent arc plates. The multiple insert plates are capable of synchronous expansion or synchronous contraction. When the multiple insert plates and multiple arc plates are in a contracted state, the sealing element can slide within the expansion chamber to adjust the size of the welding chamber. When the multiple insert plates and multiple arc plates are in an expanded state, the multiple insert plates and multiple arc plates are inserted into the sealing slots to form a sealed partition of the welding chamber.

[0006] Preferably, the inner walls of the main chamber, the secondary chamber, and the tail chamber are each equipped with multiple guide rails of the same structure, and the inner walls of the secondary chamber and the tail chamber are each arranged with fixed toothed plates of the same structure; the inner cavity of the tail chamber is divided into a secondary cavity area and a waiting area with the same structure as the inner cavity of the secondary chamber through the sealing slot, and the waiting area is used to provide operating space for the sealing element.

[0007] Preferably, both the guide rail and the fixed toothed plate protrude from the opening of the sealing slot and are clearance-fitted with the outer wall of the moving cylinder.

[0008] Preferably, the outer circumferential wall of the movable cylinder is provided with a plurality of fixed sliders, the movable cylinder slides with the guide rail through the fixed sliders, and the fixed sliders are clearance fitted with the groove of the sealing slot.

[0009] Preferably, a fixed frame is installed on the other side wall of the movable cylinder, and a motor is installed on the fixed frame. Two sets of drive gear sets are arranged on the top of the fixed frame, and the two sets of drive gear sets are arranged in a symmetrical and staggered manner. Each drive gear set includes a driving gear, a bevel gear coaxially connected to the driving gear, a bevel gear connected to the bevel gear through multiple coaxially connected bevel gears, and a driven gear coaxially connected to the bevel gear. The output end of the motor is connected to the driving gear of one of the drive gear sets, the driving gears of the two drive gear sets are meshed, the driven gear is meshed with the fixed gear plate, and the driven gear is clearance-fitted with the slot of the sealing slot.

[0010] Preferably, the side wall of the movable cylinder is provided with multiple sliding grooves I, multiple sliding grooves II, and multiple movable grooves; the side wall of the insert plate is connected to multiple sliding plates I and a drive column I, the insert plate slides with the sliding grooves I through the sliding plates I, and the side wall of the insert plate forms a contact-sealed sliding state with the side wall of the movable cylinder, the drive column I is movably arranged in the movable groove and extends into the inner cavity of the movable cylinder; one side wall of the arc plate is connected to multiple sliding plates II, the arc plate slides with the sliding grooves II through the sliding plates II, and the side wall of the arc plate forms a contact-sealed sliding state with the side wall of the movable cylinder, the other side wall of the arc plate is connected to a drive column II.

[0011] Preferably, the side wall of the movable cylinder is rotatably connected to a first rotating rod via a bearing. An outer drive plate is connected to one end of the first rotating rod, and a rotating block is connected to the other end of the first rotating rod. The side wall of the outer drive plate has multiple arc grooves arranged in a circular array. Both the insert plate and the arc plate are arranged between the outer drive plate and the side wall of the movable cylinder, and the drive post of the arc plate side wall is movably arranged within the arc groove. An annular slide rail is arranged on the inner circumference of the movable cylinder, and an inner drive plate is rotatably arranged on the annular slide rail. The side wall of the inner drive plate has multiple arc grooves arranged in a circular array. The drive post of the insert plate side wall passes through the movable groove and is movably arranged within the arc groove.

[0012] Preferably, the inner drive plate has a second rotating rod connected to its side wall, the inner cavity of the inner drive plate and the inner cavity of the second rotating rod are in communication, and a guide post is connected to the outer side wall of the second rotating rod; the first rotating rod is movably arranged in the inner cavity of the second rotating rod, the rotating block is arranged to the side of the second rotating rod, and a guide post is connected to the outer side wall of the rotating block.

[0013] Preferably, a fixed plate is connected to the inner wall of the movable cylinder, and the side wall of the fixed plate is connected to the other inner wall of the movable cylinder by a plurality of guide columns and a support plate. A second motor is installed on the top of the support plate, and a control gear is connected to the output end of the second motor. A control cylinder is slidably arranged on the guide columns, and the second rotating rod is spaced within the inner cavity of the control cylinder. A control gear plate is connected to the bottom of the control cylinder, and the control gear meshes with the control gear plate.

[0014] Preferably, the control cylinder has a first drive groove and a second drive groove on its side wall. The first guide post of the second rotating rod is movably arranged in the first drive groove, and the second guide post of the first rotating rod is movably arranged in the second drive groove. The first drive groove is composed of an arc-shaped structure groove and a straight structure groove connected together. When the control cylinder moves forward, the first guide post slides from the arc-shaped structure groove into the straight structure groove, causing the second rotating rod to drive the inner drive plate to rotate in the opposite direction first, and then remain stationary and locked. The second drive groove is composed of a straight structure groove and an arc-shaped structure groove connected together. When the control cylinder moves forward, the second guide post slides from the straight structure groove into the arc-shaped structure groove, causing the first rotating rod to drive the outer drive plate to remain stationary and locked first, and then rotate in the opposite direction.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention designs a sealing element within an expanded chamber formed by multiple auxiliary chambers and a tail chamber. When both the insert plate and the arc plate retract, the sealing element can slide flexibly within the expanded chamber, thereby adjusting the size of the welding chamber between the main chamber and the sealing element as needed to accommodate the welding requirements of workpieces of different specifications. When both the insert plate and the arc plate expand, they can be simultaneously inserted into the sealing slot to form a reliable sealing barrier, ensuring the stability of the vacuum environment in the welding chamber and balancing the adjustability of the chamber space with the reliability of the seal. This effectively solves the technical problems of fixed chamber space, difficulty in adapting to workpieces of different sizes, and complex sealing barrier operation in traditional vacuum laser welding equipment.

[0016] 2. This invention designs both the guide rail and the fixed toothed plate to protrude from the groove of the sealing slot. On one hand, this allows the moving cylinder to form a stable sliding fit with the guide rail via the fixed slider on the outer circumferential wall, providing precise guidance for the smooth movement of the seal within the expansion chamber. Simultaneously, the meshing transmission between the fixed toothed plate and the driven gear in the side drive gear set of the moving cylinder ensures the controllability and accuracy of the seal's movement adjustment. On the other hand, the protruding groove design allows the guide rail and fixed toothed plate to form a reasonable clearance fit with the outer wall of the moving cylinder, and the fixed slider and driven gear also fit with the sealing slot. The groove maintains a gap, effectively preventing motion interference between the seal and the guide rail, fixed toothed plate, and sealing slot during the sliding process. This allows the seal to smoothly slide around multiple sealing slots until it slides to one of the sealing slots according to the adjustment needs of the expansion chamber. Then, the insert plate and arc plate expand and insert into the sealing slot to form a reliable sealing barrier. Through the structural design protruding from the groove, a cooperative system is constructed in which the guiding, transmission, and sealing functions do not interfere with each other. This solves the problem that the guide rail and fixed toothed plate in the cavity structure are prone to conflict with the layout structure of the sealing slot.

[0017] 3. This invention designs two sets of drive gears in a symmetrical, staggered arrangement, so that the two driven gears are staggered on both sides of the moving cylinder, achieving precise meshing with different teeth on their corresponding fixed gear plates. When the moving cylinder moves forward by the rolling of the driven gears on the fixed gear plates, it passes through the sealing slot. Since the slot of the sealing slot blocks the connection between the two adjacent fixed gear plates, when one of the driven gears rolls to the sealing slot, it briefly separates from the fixed gear plate. The staggered state of the two driven gears ensures that the other driven gear remains engaged with the other fixed gear plate, providing a stable driving force for the moving cylinder to move forward. This ensures that the moving cylinder will not experience power interruption during the process of crossing the sealing slot, and guarantees that the seal can slide continuously and smoothly along the guide rail.

[0018] 4. This invention, through the design of a control cylinder, only requires a motor to drive the control gear to rotate, which in turn drives the meshing control gear plate to reciprocate linearly along the guide post, thereby driving the control cylinder to move synchronously. The first and second drive slots on the side wall of the control cylinder follow the movement of the control cylinder. The first drive slot drives the second rotating rod to rotate via a guide post, and the second rotating rod drives the inner drive plate to rotate, achieving synchronous expansion or contraction of the insert plate along the slide groove. Similarly, the second drive slot drives the first rotating rod to rotate via a guide post, and the first rotating rod drives the outer drive plate to rotate, achieving synchronous expansion or contraction of the arc plate along the slide groove. Without a complex drive structure, only a single drive source is needed to drive the movement of the control cylinder, achieving synchronous expansion or contraction of the insert plate and arc plate. This solves the problems of high energy consumption and errors in coordinated control when multiple drive sources are used in collaborative control.

[0019] 5. This invention designs the first driving groove to be composed of an arc-shaped groove and a straight groove, and the second driving groove to be composed of a straight groove and an arc-shaped groove. When the control cylinder moves forward along the guide post, the first guide post on the second rotating rod first slides within the arc-shaped groove of the first driving groove. The guiding effect of the arc-shaped groove wall drives the first guide post to rotate the second rotating rod in the opposite direction, thereby driving the inner driving plate to rotate synchronously in the opposite direction, realizing the synchronous retraction movement of the insert plate along the sliding groove. When the first guide post slides into the straight groove, the straight groove wall restricts the rotational freedom of the first guide post, keeping the second rotating rod and the inner driving plate in a static locked state, ensuring that the insert plate is stably maintained in the retracted position. At the same time, the second guide post on the first rotating rod first slides within the straight groove of the second driving groove. The straight groove wall does not generate a rotational driving force on the second guide post, keeping the first rotating rod and the outer driving plate in a static locked state. This static locked state keeps multiple arc plates in a static locked state. In the expanded state, the insert plate can slide stably through the insertion channel between two adjacent arc plates, providing a stable channel for the synchronous contraction movement of the insert plate. After the insert plate completes the contraction state, when its guide post one slides into the straight structural groove one, the guide post two slides into the arc structural groove two. The guiding effect of the arc groove wall will drive the guide post two to drive the first rotating rod to rotate in the opposite direction, thereby driving the outer drive plate to rotate in the opposite direction synchronously, realizing the synchronous contraction movement of the arc plate along the sliding groove two. During the synchronous contraction movement of the arc plate, the guide post one remains sliding in the straight structural groove one, ensuring that the insert plate is stably kept in the contraction position, providing clearance space for the contraction of the arc plate. This design, through the timing coordination of the special groove structure, can accurately control the orderly movement of the insert plate first contracting and locking, and the arc plate contracting later by the single forward movement of the control cylinder. This solves the problem that if the insert plate and the arc plate contract synchronously, or the arc plate contracts first, the insert plate will block the contraction movement of the arc plate. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the main chamber, auxiliary chamber, and tail chamber of the present invention. Figure 3 This is a schematic diagram of the internal structure of the main chamber of the present invention; Figure 4 This is a schematic diagram of the guide rail and fixed toothed plate structure of the present invention; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the sealing element structure of the present invention; Figure 7 This is a schematic diagram showing the disassembled structure of the arc plate, outer drive plate, and moving cylinder of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the first rotating rod and the second rotating rod of the present invention; Figure 9 This is a cross-sectional structural diagram of the movable cylinder of the present invention; Figure 10 This is a schematic diagram of the control cylinder structure of the present invention; Figure 11 This is a cross-sectional structural diagram of the sealing element of the present invention; Figure 12 This is a schematic diagram of one usage state of the sealing element of the present invention; Figure 13 This is a schematic diagram showing the positional state of the sealing slot and the moving cylinder according to the present invention; Figure 14 This is a schematic diagram illustrating one usage state of the insert plate and the arc plate of the present invention.

[0021] Explanation of the labels in the diagram: 1. Main chamber; 2. Secondary chamber; 3. Tail chamber; 4. Sealing slot; 5. Seal; 6. Vacuum system module; 7. Door module; 8. Base module; 9. Laser welding module; 10. Control module; 11. Guide rail; 12. Fixed toothed plate; 301. Secondary cavity area; 302. Waiting area; 51. Moving cylinder; 52. Insert plate; 53. Arc plate; 54. First rotating rod; 55. Outer drive plate; 56. Second rotating rod; 57. Inner drive plate; 58. Control cylinder; 5101. Fixed slider; 5102. Fixed frame; 5103. Motor 1; 5104. Driving gear; 5105. Bevel gear 1; 5106. Bevel gear 2; 5107. Bevel gear 3; 5108. Driven gear; 5109. Slide groove 1; 5110. Slide groove 2; 5111. Movable groove; 5112. Bearing; 5113. Fixed plate; 5114. Guide post; 5115. Support Support plate; 5116, Motor II; 5117, Control gear; 5201, Slide plate I; 5202, Drive column I; 5301, Slide plate II; 5302, Drive column II; 5401, Rotary block; 5402, Guide column II; 5501, Arc groove II; 5601, Guide column I; 5701, Arc groove I; 5801, Control gear plate; 5802, First drive groove; 5803, Second drive groove. Detailed Implementation

[0022] like Figures 1 to 14 As shown, the present invention relates to a modular and scalable large-scale vacuum laser welding equipment cavity structure, including a main chamber 1, multiple auxiliary chambers 2, and a tail chamber 3. The main chamber 1 and auxiliary chambers 2 are detachably and sealed together, adjacent auxiliary chambers 2 are detachably and sealed together, and the end auxiliary chamber 2 is detachably and sealed together with the tail chamber 3. The detachable and sealed connection between adjacent chambers is achieved conventionally by clamping elastic sealing elements between flanges, as shown in the example. The inner walls of the main chamber 1, auxiliary chambers 2, and tail chamber 3 are all provided with identical sealing slots 4. The inner cavities of the multiple auxiliary chambers 2 and the tail chamber 3 form an extended cavity. A sealing element 5 is slidably arranged in the extended cavity, and a seal 5 is formed between the inner cavity of the main chamber 1 and the sealing element 5. The welding chamber is formed; the sealing element 5 includes a movable cylinder 51, and the side wall of the movable cylinder 51 is slidably fitted with a plurality of insert plates 52 and a plurality of arc plates 53 arranged in a ring array; the plurality of arc plates 53 can perform progressive expansion movement or synchronous contraction movement, and an insertion channel for insert plates 52 to be inserted is formed between any two adjacent arc plates 53; and the plurality of insert plates 52 can perform synchronous expansion movement or synchronous contraction movement; when the plurality of insert plates 52 and the plurality of arc plates 53 are all in a contracted state, the sealing element 5 can slide in the expanded chamber to adjust the size of the welding chamber; when the plurality of insert plates 52 and the plurality of arc plates 53 are all in an expanded state, the plurality of insert plates 52 and the plurality of arc plates 53 are all inserted into the sealing slot 4 to form a sealed partition of the welding chamber.

[0023] This invention designs a sealing element 5 within an expanded chamber formed by multiple auxiliary chambers 2 and a tail chamber 3. When both the insert plate 52 and the arc plate 53 retract, the sealing element 5 can slide flexibly within the expanded chamber, thereby adjusting the size of the welding chamber between the main chamber 1 and the sealing element 5 as needed to accommodate the welding requirements of workpieces of different specifications. When both the insert plate 52 and the arc plate 53 expand, they can be simultaneously inserted into the sealing slot 4 to form a reliable sealing barrier, ensuring the stability of the vacuum environment in the welding chamber and balancing the adjustability of the chamber space with the reliability of the seal. This effectively solves the technical problems of fixed chamber space, difficulty in adapting to workpieces of different sizes, and complex sealing barrier operation in traditional vacuum laser welding equipment.

[0024] In an embodiment of the present invention, a vacuum system module 6 is arranged on the top of the main chamber 1. The vacuum system module 6 can quickly extract the air from the welding chamber formed by the main chamber 1 and the sealing element 5, and accurately control the vacuum level of the chamber within the range required for welding. A chamber door module 7 is arranged on the side wall of the main chamber 1. The chamber door module 7 adopts a sealed door structure, and a high-pressure sealing gasket is provided between the door and the chamber door frame. Reliable sealing is achieved through a manual or electric locking mechanism. Multiple base modules 8 are movably arranged inside the main chamber 1. Each base module 8 is slidably adapted to the guide rail 11 inside the chamber. Different specifications of workpiece positioning fixtures can be installed on the top of the base, which can be adjusted according to the welding workpiece. The size is adapted to the workpiece size and the size of the expansion chamber, and the number of matching base modules 8 can be selected to achieve adaptation. The laser welding module 9 is arranged on the top of the base module 8, and the control module 10 is arranged on the side of the main chamber 1. The control module 10 serves as the central system of the entire equipment, integrating a PLC controller, a touch screen, parameter adjustment knobs, and a status display panel. It is used to set and monitor the vacuum level of the vacuum system module 6, adjust the welding parameters of the laser welding module 9, control the position of the base module 8, and open and close the chamber door module 7. The operator can complete the automated control of the entire welding process through the touch screen.

[0025] In an embodiment of the present invention, multiple guide rails 11 with the same structure are installed on the inner walls of the main chamber 1, the secondary chamber 2 and the tail chamber 3. The base module 8 is slidably arranged on the guide rails 11. Fixed toothed plates 12 with the same structure are arranged on the inner walls of the multiple secondary chambers 2 and the tail chamber 3. The inner cavity of the tail chamber 3 is divided into a secondary cavity area 301 and a waiting area 302 with the same structure as the inner cavity of the secondary chamber 2 by a sealing slot 4. The waiting area 302 is used to provide operating space for the sealing element 5.

[0026] In another embodiment of the present invention, both the guide rail 11 and the fixed toothed plate 12 protrude from the groove of the sealing slot 4 and are clearance-fitted with the outer wall of the moving cylinder 51, so that when the moving cylinder 51 slides in the expansion chamber, it will not interfere with the movement of the guide rail 11 and the fixed toothed plate 12; a plurality of fixed sliders 5101 are arranged on the outer circumference of the moving cylinder 51, and the moving cylinder 51 slides with the guide rail 11 through the fixed sliders 5101, and the fixed sliders 5101 are clearance-fitted with the groove of the sealing slot 4; so that when the moving cylinder 51 slides in the expansion chamber, the fixed sliders 5101 will not interfere with the movement of the groove of the sealing slot 4.

[0027] In another embodiment of the present invention, a fixed frame 5102 is installed on the other side wall of the movable cylinder 51. A motor 5103 is installed on the fixed frame 5102. Two sets of drive gear sets are arranged on the top of the fixed frame 5102. The two sets of drive gear sets are arranged in a symmetrical and staggered manner. The drive gear sets include a driving gear 5104. The driving gear 5104 is coaxially connected to a bevel gear 5105. The bevel gear 5105 is driven by multiple coaxially connected bevel gears 5106 to a bevel gear 5107. The bevel gear 5107 is coaxially connected to a driven gear 5108. The output end of the motor 5103 is connected to the driving gear 5104 of one of the drive gear sets. The driving gears 5104 of the two drive gear sets are meshed. The driven gear 5108 is meshed with the fixed tooth plate 12, and the driven gear 5108 is clearance-fitted with the slot of the sealing slot 4. When motor 5103 starts, its output drives the active gear 5104 of one of the drive gear sets to rotate. The meshing of the two active gears 5104 drives the other drive gear set to move synchronously. The power is transmitted to bevel gear 5107 through bevel gear 5105 and multiple coaxially connected bevel gears 5106, which in turn drives the driven gear 5108 to rotate. Since the driven gear 5108 meshes with the fixed tooth plate 12, the rotational power of motor 5103 is finally converted into the smooth linear movement of the moving cylinder 51 along the guide rail 11 in the expanded cavity, realizing the flexible adjustment of the welding cavity space.

[0028] Depend on Figure 5 and Figure 13As shown, this invention designs both the guide rail 11 and the fixed toothed plate 12 to protrude from the groove of the sealing slot 4. On the one hand, this allows the moving cylinder 51 to form a stable sliding fit with the guide rail 11 through the fixed slider 5101 on the outer circumferential wall, providing precise guidance for the smooth movement of the sealing element 5 within the expansion chamber. Simultaneously, the meshing transmission between the fixed toothed plate 12 and the driven gear 5108 in the side drive gear set of the moving cylinder ensures the controllability and accuracy of the movement adjustment of the sealing element 5. On the other hand, the protruding groove design allows the guide rail 11 and the fixed toothed plate 12 to form a reasonable clearance fit with the outer wall of the moving cylinder 51, and the fixed slider 5101 and the driven gear 5108... 08 also maintains a gap with the opening of the sealing slot 4, effectively avoiding motion interference between the sealing element 5 and the guide rail 11, the fixed toothed plate 12 and the sealing slot 4 during the sliding process. This allows the sealing element 5 to smoothly slide and avoid multiple sealing slots 4 until it slides to one of the sealing slots 4 according to the adjustment needs of the expansion chamber. Then, the insertion plate 52 and the arc plate 53 expand and are inserted into the sealing slot 4 to form a reliable sealing barrier. Through the structural design that protrudes from the slot opening, a cooperative system in which the guiding, transmission and sealing do not interfere with each other is constructed. This solves the problem that the guide rail 11 and the fixed toothed plate 12 in the cavity structure are prone to conflict with the layout structure of the sealing slot 4.

[0029] Depend on Figure 6 and Figure 13 As shown, this invention designs two sets of drive gears in a symmetrical, staggered arrangement, so that the two driven gears 5108 are staggered on both sides of the moving cylinder 51, and precisely mesh with different teeth on their corresponding fixed tooth plates 12. When the moving cylinder 51 moves forward by the rolling of the driven gears 5108 on the fixed tooth plates 12, and passes through the sealing slot 4, since the slot of the sealing slot 4 blocks the connection between the two adjacent fixed tooth plates 12, when one of the driven gears 5108 rolls to the sealing slot 4, the driven gear 5108 is temporarily separated from the fixed tooth plate 12. The staggered state of the two driven gears 5108 allows the other driven gear 5108 to still mesh with the other fixed tooth plate 12, providing a stable driving force for the moving cylinder 51 to move forward, thereby ensuring that the moving cylinder 51 will not experience a power interruption during the process of crossing the sealing slot 4, and ensuring that the sealing element 5 can slide continuously and smoothly along the guide rail 11.

[0030] In another embodiment of the present invention, the side wall of the movable cylinder 51 is provided with a plurality of sliding grooves 5109, a plurality of sliding grooves 5110, and a plurality of movable grooves 5111; the side wall of the insert plate 52 is connected with a plurality of sliding strips 5201 and a drive column 5202, the insert plate 52 slides with the sliding grooves 5109 through the sliding strips 5201, and the side wall of the insert plate 52 forms a contact-sealed sliding state with the side wall of the movable cylinder 51, the drive column 5202 is movably arranged in the movable groove 5111 and extends into the inner cavity of the movable cylinder 51; arc plate 53 One side wall is connected to multiple sliding plates 5301. The arc plate 53 slides with the sliding groove 5110 through the sliding plates 5301, and the side wall of the arc plate 53 and the side wall of the moving cylinder 51 form a contact-sealed sliding state. The other side wall of the arc plate 53 is connected to a drive column 5302. Furthermore, the side wall of the moving cylinder 51 is rotatably connected to a first rotating rod 54 through a bearing 5112. The end of the first rotating rod 54 is connected to an outer drive plate 55, and the other end of the first rotating rod 54 is connected to a rotating block 5401. The side wall of the outer drive plate 55 has multiple openings. A second arc groove 5501 arranged in a ring array; both the insert plate 52 and the arc plate 53 are arranged between the outer drive plate 55 and the side wall of the moving cylinder 51, and the drive column 5302 of the side wall of the arc plate 53 is movably arranged within the second arc groove 5501; an annular slide rail is arranged on the inner circumference of the moving cylinder 51, and an inner drive plate 57 is rotatably arranged on the annular slide rail. The side wall of the inner drive plate 57 has multiple arc grooves 5701 arranged in a ring array. The drive column 5202 of the side wall of the insert plate 52 passes through the movable groove 5111 and is movably arranged within the first arc groove 5501. 701; when the inner drive plate 57 rotates, the arc groove 5701 on its side wall cooperates with the drive post 5202 of the insert plate 52, causing the insert plate 52 to expand or contract synchronously along the slide groove 5109; when the outer drive plate 55 rotates, the arc groove 5501 on the outer drive plate 55 cooperates with the drive post 5302 of the arc plate 53, converting the rotational motion into the synchronous expansion or contraction motion of the arc plate 53 along the slide groove 5110, and the insertion channel between any two adjacent arc plates 53 provides the insertion space for the insert plate 52.

[0031] In another embodiment of the present invention, a second rotating rod 56 is connected to the side wall of the inner drive plate 57, and the inner cavity of the inner drive plate 57 is in communication with the inner cavity of the second rotating rod 56. A guide post 5601 is connected to the outer wall of the second rotating rod 56. A first rotating rod 54 is movably arranged in the inner cavity of the second rotating rod 56, so that the first rotating rod 54 and the second rotating rod 56 do not interfere with each other when they rotate respectively. A rotating block 5401 is arranged on the side of the second rotating rod 56, and a guide post 5402 is connected to the outer wall of the rotating block 5401. A fixing plate 5113 is connected to the inner wall of the moving cylinder 51, and the side wall of the fixing plate 5113 is connected to the other inner wall of the moving cylinder 51 by multiple guides. The column 5114 is connected to the support plate 5115. A second motor 5116 is mounted on the top of the support plate 5115, and a control gear 5117 is connected to the output end of the second motor 5116. A control cylinder 58 is slidably arranged on the guide column 5114. A second rotating rod 56 is spaced within the inner cavity of the control cylinder 58 to prevent friction with the inner wall of the control cylinder 58 during rotation. A control gear plate 5801 is connected to the bottom of the control cylinder 58, and the control gear 5117 meshes with the control gear plate 5801. A first drive groove 5802 and a second drive groove 5803 are formed on the side wall of the control cylinder 58. The guide column 5114 of the second rotating rod 5114... The first rotating rod 54's guide post 5402 is movably arranged within the first drive groove 5802, and the second rotating rod 54's guide post 5402 is movably arranged within the second drive groove 5803. This invention, through the design of the control cylinder 58, only requires the second motor 5116 to drive the control gear 5117 to rotate, which in turn drives the meshing control gear plate 5801 to perform linear reciprocating motion along the guide post 5114, thereby driving the control cylinder 58 to move synchronously. The first drive groove 5802 and the second drive groove 5803, opened on the side wall of the control cylinder 58, follow the movement of the control cylinder 58. The first drive groove 5802 can drive the second rotating rod 56 to rotate via the first guide post 5601. The second rotating rod 56 drives the inner drive plate 57 to rotate, realizing the synchronous expansion or contraction of the insert plate 52 along the slide groove 5109. Similarly, the second drive groove 5803 can drive the first rotating rod 54 to rotate through the guide post 5402. The first rotating rod 54 drives the outer drive plate 55 to rotate, realizing the synchronous expansion or contraction of the arc plate 53 along the slide groove 5110. Without the need for a complex drive structure, the synchronous expansion or contraction of the insert plate 52 and the arc plate 53 can be controlled by designing a single drive source to drive the movement of the control cylinder 58. This solves the problem of high energy consumption and easy error in coordinated control when multiple drive sources are used for coordinated control.

[0032] In another embodiment of the present invention, the first drive groove 5802 is composed of an arc-shaped structure groove 1 and a straight structure groove 1 connected together. When the control cylinder 58 moves forward, the guide post 5601 slides from the arc-shaped structure groove 1 into the straight structure groove 1, so that the second rotating rod 56 drives the inner drive plate 57 to first rotate in the opposite direction, and then maintains a stationary locked state. The second drive groove 5803 is composed of a straight structure groove 2 and an arc-shaped structure groove 2 connected together. When the control cylinder 58 moves forward, the guide post 5402 slides from the straight structure groove 2 into the arc-shaped structure groove 2, so that the first rotating rod 54 drives the outer drive plate 55 to first maintain a stationary locked state, and then rotate in the opposite direction.This invention designs the first driving groove 5802 to be composed of a connected arc-shaped groove and a connected straight groove, and the second driving groove 5803 to be composed of a connected straight groove and an arc-shaped groove. When the second motor 5116 drives the control gear 5117 to rotate, the control gear plate 5801 meshing with the control gear 5117 will drive the control cylinder 58 to move forward along the guide post 5114. During this process, the guide post 5601 on the second rotating rod 56 first slides in the arc-shaped groove of the first driving groove 5802, and the guiding effect of the arc-shaped groove wall will drive the guide post 5601 to drive the second rotating rod. 56 rotates in the opposite direction, thereby driving the inner drive plate 57 to rotate synchronously in the opposite direction, realizing the synchronous retraction movement of the insert plate 52 along the slide groove 5109. When the guide post 5601 slides into the straight structure groove 51, the straight groove wall restricts the rotational freedom of the guide post 5601, so that the second rotating rod 56 and the inner drive plate 57 remain in a static locked state, ensuring that the insert plate 52 is stably kept in the retracted position. At the same time, the guide post 5402 on the first rotating rod 54 first slides in the straight structure groove 5109 of the second drive groove 5803. The straight groove wall does not generate a rotational driving force on the guide post 5402, so that the first rotating rod 54 and the outer drive... Plate 55 remains in a stationary locked state, which keeps multiple arc plates 53 in an expanded state. This state ensures that the insert plate 52 can slide stably from the insertion channel between two adjacent arc plates 53, providing a stable channel for the synchronous contraction movement of the insert plate 52. After the insert plate 52 completes its contraction, when its guide post 5601 slides into the straight structural groove 1, guide post 5402 just slides into the arc structural groove 2. The guiding action of the arc groove wall will drive guide post 5402 to drive the first rotating rod 54 to rotate in the opposite direction, thereby driving the outer drive plate 55 to rotate synchronously in the opposite direction, realizing the arc plate 53 along the sliding groove 5601. The synchronous contraction motion of 110; during the synchronous contraction motion of the arc plate 53, the guide post 5601 slides within the straight structure groove, ensuring that the insert plate 52 remains stably in the contraction position, providing clearance space for the contraction of the arc plate 53; this design, through the timing coordination of the special groove structure, and with the help of the single forward movement of the control cylinder 58, can precisely control the orderly movement of the insert plate 52 contracting and locking first, followed by the contraction of the arc plate 53, solving the problem that if the insert plate 52 and the arc plate 53 contract synchronously, or if the arc plate 53 contracts first, the insert plate 52 will obstruct the contraction motion of the arc plate 53.

[0033] Working principle: This embodiment provides a modular and expandable large vacuum laser welding equipment cavity structure. In use, firstly, the required welding chamber space size is determined according to the size and specifications of the workpiece to be welded. Then, motor 1 5103 is started. The output end of motor 1 5103 drives the active gear 5104 of one set of drive gears to rotate. With the meshing transmission of the two active gears 5104, the other set of drive gears moves synchronously. The power is transmitted to bevel gear 3 5107 through bevel gear 1 5105 and multiple coaxially connected bevel gears 2 5106, which in turn drives the driven gear 5108 to rotate. Since the driven gear 5108 meshes with the fixed tooth plate 12, the rotational power is converted into the linear motion of the moving cylinder 51. The moving cylinder 51 slides smoothly in the expanded chamber along the guide rail 11 through the fixed slider 5101 on the outer circumference of the cylinder until the seal 5 moves to the target sealing slot 4, at which point motor 1 5103 stops working. Subsequently, motor 2 5116 is started, driving control gear 5117 to rotate, which in turn drives control gear plate 5801, which meshes with it, to move backward along guide post 5114, and control cylinder 58 slides backward synchronously. At this time, guide post 1 5601 on second rotating rod 56 first slides in straight structural groove 1 of first drive groove 5802, second rotating rod 56 and inner drive plate 57 remain stationary, and insert plate 52 remains in retracted state; at the same time, guide post 2 5402 on first rotating rod 54 slides in arc structural groove 2 of second drive groove 5803, the guiding effect of arc groove wall drives guide post 2 5402 to drive first rotating rod 54 to rotate forward, and then drives outer drive plate 55 to rotate forward synchronously, and arc groove 2 5501 on outer drive plate 55 interacts with drive post 2 of arc plate 53. With the cooperation of 5302, multiple arc plates 53 are pushed to expand synchronously along the second slide groove 5110; when the second guide post 5402 slides into the second straight structure groove, the outer drive plate 55 stops rotating, the arc plates 53 remain stably expanded and are initially embedded in the sealing slot 4; then, the first guide post 5601 slides into the first arc structure groove of the first drive groove 5802, the arc groove wall drives the first guide post 5601 to drive the second rotating rod 56 to rotate forward, the inner drive plate 57 rotates forward synchronously, and the arc groove 5701 on its side wall cooperates with the first drive post 5202 of the insert plate 52 to push multiple insert plates 52 to expand synchronously along the first slide groove 5109. The insert plate 52 is embedded in the insertion channel between two adjacent arc plates 53, and together with the arc plates 53, it is completely inserted into the sealing slot 4 to form a reliable sealing barrier to the welding chamber; After sealing is completed, the operator opens the chamber door module 7, fixes the workpiece to be welded on the positioning fixture of the base module 8, pushes the base module 8 to slide along the guide rail 11 to the preset welding position of the welding chamber, then closes the chamber door module 7 and uses the vacuum system module 6 to extract the air in the welding chamber so that the chamber reaches the vacuum degree required for welding, starts the laser welding module 9, and performs laser welding on the workpiece according to the preset welding parameters.

[0034] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A modular and scalable cavity structure for a large-scale vacuum laser welding equipment, characterized in that, It includes a main chamber (1), multiple auxiliary chambers (2) and a tail chamber (3). The main chamber (1) and the auxiliary chambers (2) are detachably and sealed together. Two adjacent auxiliary chambers (2) are detachably and sealed together. The auxiliary chamber (2) at the end is detachably and sealed together with the tail chamber (3). The inner walls of the main chamber (1), the auxiliary chamber (2) and the tail chamber (3) are all provided with sealing slots (4) with the same structure. The inner cavities of the multiple auxiliary chambers (2) and the tail chamber (3) form an extended chamber; A sealing element (5) is slidably arranged in the extended cavity, and a welding chamber is formed between the inner cavity of the main cavity (1) and the sealing element (5); The sealing element (5) includes a movable cylinder (51), and the side wall of the movable cylinder (51) is slidably fitted with a plurality of insert plates (52) and a plurality of arc plates (53) arranged in a ring array; the plurality of arc plates (53) can perform progressive expansion movement or synchronous contraction movement, and an insertion channel for the insert plates (52) to be inserted is formed between any two adjacent arc plates (53); and the plurality of insert plates (52) can perform synchronous expansion movement or synchronous contraction movement; When the multiple insert plates (52) and the multiple arc plates (53) are all in a contracted state, the sealing element (5) can slide in the expanded cavity to adjust the size of the welding cavity; when the multiple insert plates (52) and the multiple arc plates (53) are all in an expanded state, the multiple insert plates (52) and the multiple arc plates (53) are all inserted into the sealing slot (4) to form a sealed partition of the welding cavity.

2. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 1, characterized in that, The inner walls of the main chamber (1), the secondary chamber (2) and the tail chamber (3) are each equipped with multiple guide rails (11) with the same structure, and the inner walls of the secondary chambers (2) and the tail chamber (3) are each equipped with fixed toothed plates (12) with the same structure. The inner cavity of the tail chamber (3) is divided into a secondary cavity area (301) and a waiting area (302) with the same structure as the inner cavity of the secondary chamber (2) by the sealing slot (4). The waiting area (302) is used to provide operating space for the seal (5).

3. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 2, characterized in that, The guide rail (11) and the fixed toothed plate (12) both protrude from the groove of the sealing slot (4) and are in clearance fit with the outer wall of the moving cylinder (51).

4. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 3, characterized in that, The outer circumference of the movable cylinder (51) is provided with a plurality of fixed sliders (5101). The movable cylinder (51) slides with the guide rail (11) through the fixed sliders (5101). The fixed sliders (5101) are in clearance fit with the groove of the sealing slot (4).

5. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 4, characterized in that, A fixed frame (5102) is installed on the other side wall of the movable cylinder (51). A motor (5103) is installed on the fixed frame (5102). Two sets of drive gear sets are arranged on the top of the fixed frame (5102). The two sets of drive gear sets are arranged in a symmetrical and staggered manner. The drive gear set includes a drive gear (5104), which is coaxially connected to a bevel gear (5105). The bevel gear (5105) is driven by a bevel gear (5107) through multiple coaxially connected bevel gears (5106). The bevel gear (5107) is coaxially connected to a driven gear (5108). The output end of the motor (5103) is connected to the driving gear (5104) of one of the driving gear sets, the driving gears (5104) of the two driving gear sets are meshed, the driven gear (5108) is meshed with the fixed tooth plate (12), and the driven gear (5108) is clearance-fitted with the slot of the sealing slot (4).

6. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 5, characterized in that, The side wall of the movable cylinder (51) is provided with multiple sliding grooves (5109), multiple sliding grooves (5110), and multiple movable grooves (5111). The side wall of the insert plate (52) is connected to a plurality of sliding plates (5201) and a drive column (5202). The insert plate (52) slides with the slide groove (5109) through the sliding plates (5201), and the side wall of the insert plate (52) and the side wall of the moving cylinder (51) form a contact-type sealed sliding state. The drive column (5202) is movably arranged in the movable groove (5111) and extends into the inner cavity of the moving cylinder (51). A plurality of sliding plates (5301) are connected to one side wall of the arc plate (53). The arc plate (53) slides with the sliding groove (5110) through the sliding plates (5301), and the side wall of the arc plate (53) and the side wall of the moving cylinder (51) form a contact-sealed sliding state. A drive column (5302) is connected to the other side wall of the arc plate (53).

7. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 6, characterized in that, The side wall of the movable cylinder (51) is rotatably connected to a first rotating rod (54) via a bearing (5112). The end of the first rotating rod (54) is connected to an outer drive plate (55), and the other end of the first rotating rod (54) is connected to a rotating block (5401). The side wall of the outer drive plate (55) is provided with a plurality of arc grooves (5501) arranged in a ring array. The insert plate (52) and the arc plate (53) are both arranged between the outer drive plate (55) and the side wall of the movable cylinder (51), and the drive column (5302) of the side wall of the arc plate (53) is movably arranged in the arc groove (5501). The inner wall of the movable cylinder (51) is provided with an annular slide rail, and an inner drive plate (57) is rotatably arranged on the annular slide rail. The inner drive plate (57) has multiple arc grooves (5701) arranged in an annular array on its side wall. The drive column (5202) on the side wall of the insert plate (52) passes through the movable groove (5111) and is movably arranged in the arc groove (5701).

8. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 7, characterized in that, The inner drive plate (57) is connected to a second rotating rod (56) on its side wall. The inner cavity of the inner drive plate (57) and the inner cavity of the second rotating rod (56) are in communication. The outer wall of the second rotating rod (56) is connected to a guide post (5601). The first rotating rod (54) is movably arranged in the inner cavity of the second rotating rod (56), the rotating block (5401) is arranged on the side of the second rotating rod (56), and the outer wall of the rotating block (5401) is connected to the second guide post (5402).

9. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 8, characterized in that, The inner wall of the movable cylinder (51) is connected to a fixing plate (5113). The side wall of the fixing plate (5113) is connected to the other inner wall of the movable cylinder (51) through multiple guide columns (5114) and a support plate (5115). The support plate (5115) is connected to a motor (5116) mounted on the top. The output end of the motor (5116) is connected to a control gear (5117). A control cylinder (58) is slidably arranged on the guide post (5114), and the second rotating rod (56) is spaced within the cavity of the control cylinder (58). The bottom of the control cylinder (58) is connected to a control gear plate (5801), and the control gear (5117) meshes with the control gear plate (5801).

10. The modular and scalable cavity structure of a large-scale vacuum laser welding equipment according to claim 9, characterized in that, The control cylinder (58) has a first drive groove (5802) and a second drive groove (5803) on its side wall. The first guide post (5601) of the second rotating rod (56) is movably arranged in the first drive groove (5802), and the second guide post (5402) of the first rotating rod (54) is movably arranged in the second drive groove (5803). The first drive groove (5802) is composed of an arc-shaped structure groove and a straight structure groove connected together. When the control cylinder (58) moves forward, the guide post (5601) slides from the arc-shaped structure groove into the straight structure groove, so that the second rotating rod (56) drives the inner drive plate (57) to rotate in the opposite direction first, and then maintains a stationary locked state. The second drive groove (5803) is composed of a straight structure groove and an arc structure groove connected together. When the control cylinder (58) moves forward, the guide post (5402) slides from the straight structure groove into the arc structure groove, so that the first rotating rod (54) drives the outer drive plate (55) to first remain stationary and locked, and then rotate in the opposite direction.

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