An automatic welding system and method for producing a cold storage insulation board framework

Abstract

The application belongs to the technical field of cold storage production, and particularly relates to an automatic welding system and method for cold storage insulation board framework production. The system comprises a lower horizontal displacement assembly, a clamping assembly, a slit welding assembly, a lifting assembly, an upper horizontal displacement assembly, a suspension steering assembly and a girth welding assembly. The lower horizontal displacement assembly drives the two clamping assemblies to move in opposite directions, relies on the suction cup to fix the pressure-bearing frame and automatically clamps the panel connecting component, each clamping assembly is matched with the slit welding assembly to complete linear slit welding, the upper lifting assembly drives the upper horizontal displacement assembly to slide horizontally, the suspension steering assembly can drive the girth welding assembly to rotate and change position, and the welding head of the girth welding assembly walks along the circumference to realize continuous girth welding of the panel and the tensile component. The application integrates slit and girth double-mode automatic welding, realizes full-process automatic pre-positioning and welding, and is suitable for modular insulation board framework large-scale production.

Description

Technical Field

[0001] This invention belongs to the field of cold storage production technology, specifically relating to an automated welding system and method for producing cold storage insulation panel frames. Background Technology

[0002] With the rapid iteration and upgrading of industries such as cold chain logistics, food processing, biomedicine, and precision low-temperature warehousing, the market's requirements for the insulation performance, structural stability, and adaptability of prefabricated cold storage are continuously increasing. Prefabricated cold storage, with its advantages of efficient construction, low energy consumption, good sealing, and wide adaptability, has become the mainstream facility in the low-temperature warehousing field. As a component of the cold storage enclosure structure, the insulation panel determines the overall thermal insulation effect of the cold storage. The insulation panel frame is the load-bearing and forming foundation of the insulation panel, not only supporting the insulation core material and fixing the panel structure, but also being crucial to ensuring the overall structural compressive strength and low-temperature stability of the panel.

[0003] To meet the demands of high-end low-temperature warehousing scenarios, our company has designed an improved cold storage insulation panel frame. This frame adopts a built-in pipeline radiant cooling structure, enabling rapid overall pre-cooling of the empty cold storage. The walls and ceiling release cooling simultaneously, eliminating high-temperature dead zones. It abandons the traditional fan-driven cooling mode, effectively preventing moisture loss in fruits, vegetables, and meat products. Temperature fluctuations are controllable, making it suitable for high-precision low-temperature scenarios such as fruit and vegetable pre-cooling warehouses, pharmaceutical constant-temperature warehouses, and high-frequency inbound / outbound buffer rooms. Simultaneously, by adding a tensile-resistant and integrated connection structure, the frame significantly improves its overall load-bearing capacity and deformation resistance, adapting to the construction needs of large-span, high-load-bearing cold storage facilities. The modular snap-fit ​​assembly structure allows for rapid alignment and assembly of panels, greatly improving on-site cold storage construction efficiency.

[0004] However, current traditional welding equipment and processes in the industry cannot meet the production and processing requirements of this improved insulation board frame. Traditional welding methods are mostly manual-assisted single-point welding and split-type welding operations, which can only achieve fixed welding of simple frame structures and have obvious technical defects: First, they cannot complete the integrated welding of multiple types of joints, such as strip joints and circumferential joints, between the frame load-bearing frame, connecting components, tensile components, and panels. The welding process is scattered, the positioning accuracy is poor, and problems such as weld misalignment, incomplete welding, and missed welding are prone to occur, resulting in poor frame forming consistency and inability to guarantee subsequent sealing and load-bearing performance. Second, there are many manual intervention processes and low degree of automation, which cannot meet the integrated production requirements of modular frame alignment, snap-fit, and continuous welding, resulting in low production efficiency and difficulty in achieving mass production. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned problems in the prior art and provide an automated welding system and method for the production of cold storage insulation board frames.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: This invention provides an automated welding system for the production of cold storage insulation panel frames, including a lower horizontal displacement assembly, a clamping assembly, a strip seam welding assembly, a lifting assembly, an upper horizontal displacement assembly, a suspension steering assembly, and a circumferential seam welding assembly; The clamping assembly is used to adsorb and fix the pressure-bearing frame, and to snap-fit ​​panel connecting components for connecting the panel on both sides; there are two clamping assemblies, and they are driven by the lower horizontal displacement assembly to move relative to each other in the horizontal longitudinal direction, thereby causing the pressure-bearing frames on both sides to snap-fit ​​onto the ends of the pressure-bearing pipe. The interior of the pressure-bearing frame is pre-installed with a connecting pipe that can communicate with the pressure-bearing pipe to form a pre-cooling pipeline. The pressure-bearing pipe is pre-sleeved with multiple panel tensile members; each clamping assembly is equipped with two strip welding assemblies for welding the panel connecting components, the pressure-bearing frame, or the strip seam at the panel connection. The seam welding assembly includes a dual-axis push rod, a third lead screw support, a third motor, a third lead screw, a third carrier plate, an ear seat, a first welding head, and an adjusting motor. The dual-axis push rod is mounted on the side plate of the second lead screw support. The movable end of the dual-axis push rod is equipped with the third lead screw support. The third lead screw, driven to rotate by the third motor, is movably supported in the third lead screw support. A rotation-restricted third carrier plate is sleeved on the outer side of the third lead screw. An ear seat and an adjusting motor are mounted on the third carrier plate. The ear seat is hinged to the first welding head. The output end of the adjusting motor is connected to the hinge shaft and is used to adjust the tilt angle of the first welding head along the horizontal plane. The upper horizontal displacement component is positioned above the lower horizontal displacement component and is driven to move up and down by the lifting component; the upper horizontal displacement component can drive two parallel suspension steering components to move horizontally; the lower end of the suspension steering component is equipped with a circumferential welding component for welding the panel tensile members and the circumferential seam at the panel connection. The circumferential welding assembly includes a mechanical gripper, a suspension vertical plate, an arc-shaped slide rail, a slider, and a second welding head. The top of the mechanical gripper is fixed on a corresponding suspension shaft. The mechanical gripper has two gripper parts that can move relative to each other, and each gripper part is connected to a suspension vertical plate. Several arc-shaped slide rails are installed on the suspension vertical plate. Two opposing arc-shaped slide rails are joined together to form a circular slide rail. A slider that forms an arc-shaped guide rail pair with one of the arc-shaped slide rails is installed on it. A second welding head is installed on the outer side of the slider. The suspension vertical plate has a support horizontal plate for assisting in fixing the arc-shaped slide rails. The inner end of the support horizontal plate has a clamping groove for facilitating the clamping of the pull rod.

[0007] Furthermore, the pressure-bearing frame, panel connecting components, pressure-bearing pipes, connecting pipes, panels, and panel tensile components together form the cold storage insulation panel skeleton; The pressure-bearing frame includes a rectangular frame, the inner cavity of which is divided into multiple snap-fit ​​areas by a partition. Each snap-fit ​​area has a snap-fit ​​tube on the outer side of its upper side plate. The inner end of the snap-fit ​​tube has a first opening for easy installation of a connecting tube. The partition has a second opening for easy installation of a connecting tube. The panel connecting component includes an angle plate. The outer side of the vertical plate portion of the angle plate is provided with several snap-fit ​​protrusions that cooperate with the snap-fit ​​area. The outer end of the horizontal plate portion of the angle plate is provided with a hook portion. The hook portion includes a hook groove for installing the panel and a slide rail groove for snapping onto the cold storage slide rail component. The panel includes a vertical plate, and hooks that mate with the hook groove are installed at both the upper and lower ends of the vertical plate. The panel tensile member consists of a slip ring, a tie rod, and tensile blocks. The inner diameter of the slip ring matches the outer diameter of the pressure-bearing pipe, and tensile blocks are connected to both sides of the slip ring via tie rods.

[0008] Furthermore, the lower horizontal displacement assembly includes a first lead screw support, a first motor, a gearbox, a first lead screw, a first carrier plate, and a support plate. The first motor and the gearbox are installed on the inner side of the web of the first lead screw support. The output shaft of the first motor is connected to the middle part of the first lead screw via a steering gear set placed in the gearbox. The two ends of the first lead screw are provided with first lead screw sections with opposite directions of rotation. A first carrier plate with restricted rotation is sleeved on the outer side of each first lead screw section. A support plate for supporting the pressure frame is installed on the inner side of the first carrier plate.

[0009] Furthermore, the clamping assembly includes a second lead screw support, a protrusion, a suction cup, a second motor, a second lead screw, a second carrier plate, and a rail clamping head. The second lead screw support is fixed on the corresponding first carrier plate. A protrusion is installed on the inner side of the web of the second lead screw support, and a second motor is installed on the outer side of the web of the second lead screw support. A suction cup for adsorbing the pressure frame is embedded in the protrusion. The output shaft of the second motor is connected to the middle part of the second lead screw via a steering gear set placed in the protrusion. The two ends of the second lead screw are provided with second lead screw sections with opposite directions of rotation. A second carrier plate with restricted rotation is sleeved on the outer side of each second lead screw section. A rail clamping head that mates with the slide rail groove is installed on the outer end of the second carrier plate.

[0010] Furthermore, the lifting assembly includes a fourth lead screw support, a fourth motor, a fourth lead screw, and a fourth carrier plate. The fourth lead screw support movably supports the fourth lead screw that is driven to rotate by the fourth motor, and the fourth carrier plate, which restricts rotation, is sleeved on the outside of the fourth lead screw.

[0011] Furthermore, the upper horizontal displacement assembly includes a fifth lead screw support, a fifth motor, a fifth lead screw, and a fifth carrier plate. The fifth lead screw support movably supports a fifth lead screw that is driven to rotate by the fifth motor, and a fifth carrier plate with restricted rotation is sleeved on the outer side of the fifth lead screw.

[0012] Furthermore, the suspension steering assembly includes a suspension box, a suspension shaft is movably supported on the lower side of the suspension box, a steering motor is installed on the side end of the suspension box, and the output shaft of the steering motor is connected to the suspension shaft via a steering gear set.

[0013] This invention also provides an automated welding method for producing cold storage insulation panel frames, based on the aforementioned automated welding system for producing cold storage insulation panel frames, comprising the following steps: S1. The lower horizontal displacement component drives the clamping component to move towards each other, clamping the pressure frame of the pre-installed connecting pipe onto both ends of the pressure pipe, thus completing the pre-installation of the three components. S2. The clamping component uses a suction cup to fix the pressure frame, and the driving rail head drives the panel connecting component to be clamped and fixed on the pressure frame. S3. After the strip weld assembly is positioned, the strip weld between the pressure frame and the panel connection component and the pressure pipe is completed through the first welding head. S4. After the panel is installed, the lifting component lowers the horizontal displacement component, the suspension steering component carries the circumferential welding component into place, the circumferential welding component clamps the tie rod and splices the arc-shaped slide rail, and the second welding head travels along the circumference of the slide rail to complete the circumferential welding on both sides of the panel. S5. The clamping components are released, and the finished insulation board frame is removed.

[0014] The beneficial effects of this invention are: 1. This invention innovatively integrates a dual-mode automated operation structure for strip seam welding and circumferential seam welding. It can complete straight strip seam welding between the pressure-bearing frame and panel connecting components, and between pressure-bearing pipes, as well as circumferential seam welding at the joint between the panel tensile components and the panel in a single operation. The system ensures the sealing, strength, and consistency of the weld seams through multi-dimensional screw adjustment, adaptive angle adjustment, and circumferential closed-loop welding positioning. The welded insulation board frame structure exhibits strong stability, matching the sealing requirements of the built-in pre-cooling pipeline, avoiding air and cold leakage problems. Simultaneously, it fully leverages the tensile and deformation-resistant structural advantages of the frame, meeting the usage requirements of large-span, high-load-bearing cold storage and high-precision low-temperature storage scenarios.

[0015] 2. This system integrates the entire automated process of workpiece alignment, clamping pre-assembly, welding, station switching, and finished product demolding. Relying on the coordinated linkage of various displacement components, clamping components, and welding components, it eliminates the need for extensive manual intervention in positioning, alignment, welding, and adjustment operations, thereby shortening the production cycle of cold storage insulation panel frames and improving production efficiency.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram showing the state of the strip weld assembly before it is put into operation in this invention; Figure 2 This is a schematic diagram showing the state of the circumferential weld assembly before operation in this invention; Figure 3 This is an exploded view of the cold storage insulation panel frame in this invention; Figure 4 This is a schematic diagram of the cold storage insulation panel frame in this invention; Figure 5 This is a schematic diagram of the pressure-bearing frame in this invention; Figure 6 This is a schematic diagram of the panel connecting component in this invention; Figure 7 This is a schematic diagram of the panel structure in this invention; Figure 8 This is a structural schematic diagram of the panel tensile member in this invention; Figure 9 This is a schematic diagram showing the position of the strip weld assembly in this invention; Figure 10 This is a schematic diagram of the lower horizontal displacement component in this invention; Figure 11 This is a schematic diagram of the clamping component in the present invention; Figure 12 This is a schematic diagram of the structure of the strip weld assembly in this invention; Figure 13 This is a schematic diagram showing the position of the circumferential weld assembly in this invention; Figure 14 This is a schematic diagram of the lifting assembly in this invention; Figure 15 This is a schematic diagram of the structure of the upper horizontal displacement component, the suspension steering component, and the circumferential welded component in this invention; Figure 16 This is a schematic diagram of the working state of the circumferential weld assembly in this invention; In the attached diagram, the components represented by each number are as follows: 1-Lower horizontal displacement assembly, 101-First lead screw support, 102-First motor, 103-Gear box, 104-First lead screw, 105-First lead screw segment, 106-First carrier plate, 107-Panel; 2-Clamping assembly, 201-Second lead screw bracket, 202-Protrusion, 203-Suction cup, 204-Second lead screw, 205-Second lead screw section, 206-Second carrier plate, 207-Clamping head; 3-Slot welding assembly, 301-Dual-axis push rod, 302-Third lead screw support, 303-Third motor, 304-Third lead screw, 305-Third carrier plate, 306-Ear seat, 307-First welding head, 308-Adjusting motor; 4-Lifting assembly, 401-Fourth lead screw bracket, 402-Fourth motor, 403-Fourth lead screw, 404-Fourth carrier plate; 5-Upper horizontal displacement assembly, 501-Fifth lead screw support, 502-Fifth motor, 503-Fifth carrier plate; 6-Suspension and steering assembly, 601-Suspension box, 602-Steering motor; 7-Circumferential weld assembly, 701-Mechanical gripper, 702-Suspension vertical plate, 703-Arc-shaped slide rail, 704-Slider, 705-Second welding head, 706-Supporting horizontal plate; 8-Pressure-bearing frame, 801-Rectangular frame, 802-Partition plate, 803-Snap-fit ​​area, 804-Snap-fit ​​pipe, 805-First opening, 806-Second opening; 9-Panel connecting component, 901-Angle plate, 902-Snap-fit ​​protrusion tube, 903-Hook groove, 904-Slide rail groove; 10 - Pressure-bearing pipeline; 11-Connecting pipe; 12-Panel, 121-Vertical panel, 122-Hook; 13-Panel tensile member, 131-Slip ring, 132-Tie rod, 133-Tension block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1-2As shown, this embodiment provides an automated welding system for the production of cold storage insulation panel frames, including a lower horizontal displacement assembly 1, a clamping assembly 2, a strip weld assembly 3, a lifting assembly 4, an upper horizontal displacement assembly 5, a suspension steering assembly 6, and a circumferential weld assembly 7. The clamping assembly 2 is used to adsorb and fix the pressure-bearing frame 8, and panel connecting members 9 for connecting the panel 12 are snapped onto both sides of it. There are two clamping assemblies 2, and they are driven by the lower horizontal displacement assembly 1 to move relative to each other along the horizontal longitudinal direction, thereby driving the pressure-bearing frames 8 on both sides to snap onto the ends of the pressure-bearing pipe 10. The interior of the pressure-bearing frame 8 is pre-installed with a structure that can communicate with the pressure-bearing pipe 10 to form a... The pre-cooling pipeline connecting pipe 11 and the pressure-bearing pipeline 10 are pre-fitted with multiple panel tensile members 13; each clamping assembly 2 is equipped with two strip weld assembly 3 for welding the strip seam at the connection of the panel connecting member 9, the pressure-bearing frame 8 or the panel 12; the upper horizontal displacement assembly 5 is located above the lower horizontal displacement assembly 1 and is driven to move up and down by the lifting assembly 4; the upper horizontal displacement assembly 5 can drive two parallel suspended steering assemblies 6 to move horizontally; the lower end of the suspended steering assembly 6 is equipped with a ring weld assembly 7 for welding the circumferential seam at the connection of the panel tensile member 13 and the panel 12.

[0021] like Figures 3-4 As shown, the pressure-bearing frame 8, panel connecting component 9, pressure-bearing pipe 10, connecting pipe 11, panel 12, and panel tensile component 13 together form the cold storage insulation panel skeleton.

[0022] like Figure 5 As shown, the pressure-bearing frame 8 includes a rectangular frame 801. The inner cavity of the rectangular frame 801 is divided into multiple snap-fit ​​areas 803 by a partition 802. Each snap-fit ​​area 803 has a snap-fit ​​tube 804 on the outer side of its upper side plate. The inner end of the snap-fit ​​tube 804 has a first opening 805 for easy installation of a connecting pipe 11. The partition 802 has a second opening 806 for easy installation of a connecting pipe 11.

[0023] like Figure 6 As shown, the panel connecting member 9 includes an angle plate 901. The outer side of the vertical plate portion of the angle plate 901 is connected to a plurality of snap-fit ​​protrusions 902 that cooperate with the snap-fit ​​area 803. The outer end of the horizontal plate portion of the angle plate 901 is provided with a hook portion, which includes a hook groove 903 for installing the panel and a slide rail groove 904 for snapping onto the cold storage slide rail component.

[0024] like Figure 7 As shown, panel 12 includes a vertical plate 121, and hooks 122 that mate with hook grooves 903 are installed at the upper and lower ends of the vertical plate 121.

[0025] like Figure 8As shown, the panel tensile member 13 is composed of a slip ring 131, a tie rod 132 and a tensile block 133. The inner diameter of the slip ring 131 matches the outer diameter of the pressure-bearing pipe 10. The two sides of the slip ring 131 are connected to the tensile block 133 via the tie rod 132.

[0026] like Figures 9-10 As shown, the lower horizontal displacement assembly 1 includes a first lead screw support 101, a first motor 102, a gear box 103, a first lead screw 104, a first carrier plate 106, and a support plate 107. The first motor 102 and the gear box 103 are installed on the inner side of the web of the first lead screw support 101. The output shaft of the first motor 102 is connected to the middle part of the first lead screw 104 via a steering gear set placed in the gear box. The two ends of the first lead screw 104 are provided with first lead screw sections 105 with opposite directions of rotation. The outer side of each first lead screw section 105 is fitted with a first carrier plate 106 that restricts rotation. The inner side of the first carrier plate 106 is fitted with a support plate 107 for supporting the pressure frame 8.

[0027] The lower horizontal displacement component 1 is a drive mechanism for workpiece pre-assembly and alignment, relying on the bidirectional transmission principle of the lead screw to achieve synchronous opposing displacement at two workstations. During operation, the first motor 102 transmits power through the steering gear set inside the gearbox 103, driving the first lead screw 104 to rotate centrally. Since the first lead screw 104 has first lead screw sections 105 with opposite rotation directions at both ends, and the rotation of the first carrier plate 106 is restricted, the lead screw can drive the two sets of first carrier plates 106 to move synchronously towards or away from each other along the horizontal longitudinal direction during rotation. The first carrier plate 106 carries the support plate 107 and the clamping component 2. The support plate 107 is responsible for supporting the pressure frame 8 workpiece. As the first carrier plate 106 moves, it drives the two pressure frames 8 on both sides to align and clamp onto both ends of the pressure pipe 10, completing the automated pre-assembly and alignment of the skeleton basic structure, providing a workstation foundation for subsequent welding operations. The bidirectional synchronous displacement structure can ensure that the alignment accuracy of the workpieces on both sides is consistent and there is no offset deviation.

[0028] like Figure 11 As shown, the clamping assembly 2 includes a second lead screw support 201, a protrusion 202, a suction cup 203, a second motor, a second lead screw 204, a second carrier plate 206, and a rail clamping head 207. The second lead screw support 201 is fixed on the corresponding first carrier plate 106. A protrusion 202 is installed on the inner side of the web of the second lead screw support 201, and a second motor is installed on the outer side of the web of the second lead screw support 201. A suction cup 203 for adsorbing the pressure frame 8 is embedded in the protrusion 202. The output shaft of the second motor is connected to the middle part of the second lead screw 204 via a steering gear set placed in the protrusion 202. The two ends of the second lead screw 204 are provided with second lead screw segments 205 with opposite rotation directions. A second carrier plate 206 with restricted rotation is sleeved on the outer side of each second lead screw segment 205. A rail clamping head 207 that cooperates with the slide rail groove 904 is installed on the outer end of the second carrier plate 206.

[0029] The clamping assembly 2 integrates workpiece fixing and component snap-fit ​​functions, achieving stable positioning of the pressure-bearing frame 8 and assembly of the panel connecting component 9. Firstly, the assembly generates vacuum adsorption force through the suction cup 203 embedded in the protrusion 202, which can firmly adsorb and fix the pressure-bearing frame 8 placed on the support plate 107, preventing workpiece shaking and displacement during welding and ensuring welding stability. Secondly, the second motor drives the second lead screw 204 to rotate through the internal steering gear set. Using the second lead screw segments 205 with opposite rotation directions at both ends, it drives the relative displacement of the two sets of second carrier plates 206 and the end clamping head 207. The clamping head 207 cooperates with the slide rail groove 904 of the panel connecting component 9, which can drive the panel connecting component 9 to snap-fit ​​area 803 of the pressure-bearing frame 8, realizing automated snap-fit ​​pre-assembly of the component.

[0030] like Figure 12 As shown, the seam welding assembly 3 includes a dual-axis push rod 301, a third lead screw support 302, a third motor 303, a third lead screw 304, a third carrier plate 305, an ear seat 306, a first welding head 307, and an adjusting motor 308. The dual-axis push rod 301 is mounted on the side plate of the second lead screw support 201. The movable end of the dual-axis push rod 301 is equipped with the third lead screw support 302. The third lead screw 304, which is driven to rotate by the third motor 303, is movably supported in the third lead screw support 302. The outer side of the third lead screw 304 is fitted with a rotation-restricted third carrier plate 305. The ear seat 306 and the adjusting motor 308 are mounted on the third carrier plate 305. The ear seat 306 is hinged to the first welding head 307. The output end of the adjusting motor 308 is connected to the hinge shaft and is used to adjust the tilt angle of the first welding head 307 along the horizontal plane.

[0031] The seam welding assembly 3 is specifically designed for various straight seams in the frame, featuring multi-dimensional positioning, adaptive angle adjustment, and welding functions. During operation, the dual-axis push rod 301 extends first, moving the third lead screw support 302 to the preset welding position for coarse positioning. Simultaneously, the adjusting motor 308 drives the hinge shaft to rotate, causing the first welding head 307 to deflect horizontally around the hinge point. This allows for flexible adjustment of the welding tilt angle, adapting to straight seams with different angles and positions, such as those between the pressure frame 8 and the panel connection component 9, or between the pressure frame 8 and the pressure pipe 10. Subsequently, the third motor 303 drives the third lead screw 304 to rotate, causing the third carrier plate 305 and the first welding head 307 to move vertically, completing continuous automated welding of multiple straight seams along a preset trajectory.

[0032] like Figures 13-14 As shown, the lifting assembly 4 includes a fourth lead screw support 401, a fourth motor 402, a fourth lead screw 403, and a fourth carrier plate 404. The fourth lead screw support 401 movably supports the fourth lead screw 403, which is driven to rotate by the fourth motor 402. The fourth carrier plate 404, which restricts rotation, is sleeved on the outside of the fourth lead screw 403.

[0033] The lifting assembly 4 is the core of the vertical displacement drive for the upper welding mechanism, responsible for controlling the switching of the lifting position of the circumferential welding assembly 7. During operation, the fourth motor 402 drives the fourth lead screw 403 to rotate. Because the rotation of the fourth carrier plate 404 is restricted, the rotational motion of the lead screw can be converted into vertical linear lifting motion, driving the horizontal displacement assembly 5, the suspension steering assembly 6, and the circumferential welding assembly 7 to lift synchronously. By controlling the lifting stroke, the circumferential welding assembly 7 can switch between high-position standby and low-position welding operation, adapting to the welding height requirements of workpieces with different thicknesses, while ensuring the close alignment of the welding head and the workpiece during circumferential welding operations.

[0034] like Figure 15 As shown, the upper horizontal displacement component 5 includes a fifth lead screw support 501, a fifth motor 502, a fifth lead screw, and a fifth carrier plate 503. The fifth lead screw support 501 movably supports the fifth lead screw that is driven to rotate by the fifth motor 502, and the fifth carrier plate 503, which restricts rotation, is sleeved on the outside of the fifth lead screw.

[0035] The upper horizontal displacement component 5 is responsible for switching the upper circumferential welding mechanism to a horizontal position. During operation, the fifth motor 502 drives the fifth lead screw to rotate, causing the fifth carrier plate 503 to move horizontally, simultaneously moving the two sets of suspension steering components 6 and the bottom circumferential welding component 7. Through lateral adjustment, the circumferential welding component 7 can quickly switch to the left and right welding positions on both sides of the panel 12, achieving full coverage welding of the circumferential seams on both sides of the panel tensile member 13. This eliminates the need for manual adjustment of the workpiece position, quickly completing the dual-position welding switch and improving welding continuity and overall production efficiency.

[0036] In this embodiment, the suspension steering assembly 6 includes a suspension box 601, a suspension shaft is movably supported on the lower side of the suspension box 601, and a steering motor 602 is installed on the side end of the suspension box 601. The output shaft of the steering motor 602 is connected to the suspension shaft via a steering gear set.

[0037] The suspension steering assembly 6 enables the rotation angle adjustment of the circumferential welding assembly 7, meeting the requirements of double-sided circumferential welding. The suspension box 601, as a fixed support structure, provides rotational support for the suspension shaft. During operation, the steering motor 602 drives the suspension shaft to rotate via an internal steering gear set, causing the circumferential welding assembly 7 connected at the bottom to rotate synchronously by 180°. After welding the circumferential seam on one side, the welding working surface can be quickly switched by rotating the assembly to align the circumferential seam between the tensile member 13 and the panel 12 on the other side of the frame. Symmetrical welding of the double-sided circumferential seam can be completed without adjusting the workpiece, ensuring uniform and deviation-free welding quality on both sides.

[0038] like Figure 16As shown, the circumferential welding assembly 7 includes a mechanical gripper 701, a suspension vertical plate 702, an arc-shaped slide rail 703, a slider 704, and a second welding head 705. The top end of the mechanical gripper 701 is fixed on the corresponding suspension shaft. The mechanical gripper 701 has two gripper parts that can move relative to each other, and each gripper part is connected to the suspension vertical plate 702. Several arc-shaped slide rails 703 are installed on the suspension vertical plate 702. Two opposing arc-shaped slide rails 703 are joined together to form a circular slide rail. A slider 704 is installed on one of the arc-shaped slide rails 703 to form an arc-shaped guide rail pair. The second welding head 705 is installed on the outer side of the slider 704. The suspension vertical plate 702 is provided with a support horizontal plate 706 for assisting in fixing the arc-shaped slide rail 703. The inner end of the support horizontal plate 706 is provided with a clamping groove for facilitating the clamping of the pull rod 132.

[0039] The circumferential welding assembly 7 is a specialized welding mechanism for circular annular welds, enabling fully automated closed-loop circumferential welding. During operation, the two sets of grippers on the mechanical gripper 701 close relative to each other, precisely clamping and fixing the tie rod 132 through the clamping groove of the supporting horizontal plate 706, thus completing the overall positioning and locking of the mechanism. Simultaneously, the arc-shaped slide rails 703 on the suspended vertical plates 702 on both sides precisely align, forming a complete circular slide rail that encloses the outside of the circumferential weld between the tensile block 133 and the panel 12, constructing a stable circumferential welding guide rail. Subsequently, the slider 704 moves at a uniform speed along the arc-shaped slide rail 703, driving the second welding head 705 to move around the entire circumferential weld, achieving seamless, uniform, and continuous welding of the circumferential weld. This completely solves the problems of incomplete welding and uneven welds in traditional circumferential weld processes, ensuring the sealing and structural strength of the connection between the panel tensile member 13 and the panel 12.

[0040] This embodiment also provides an automated welding method for the production of cold storage insulation panel frames, including the following steps: S1. Start the lower horizontal displacement component 1. The first motor 102 drives the first lead screw 104 to rotate. The first lead screw segment 105 with opposite rotation directions at both ends drives the two sets of clamping components 2 to move longitudinally relative to each other. This drives the pressure frame 8 with pre-installed connecting pipes 11 on both sides to be clamped at both ends of the pressure pipe 10, thus completing the pre-assembly of the pressure frame 8, the pressure pipe 10, and the connecting pipe 11. S2. Place the pressure frame 8 of the pre-installed connecting pipe 11 on the support plate 107 of the lower horizontal displacement component 1. Start the clamping component 2 and use the suction cup 203 to adsorb and fix the pressure frame 8. At the same time, drive the second lead screw 204 to rotate, causing the panel connecting component 9 sleeved on the two side rail heads 207 to be inserted into the pressure frame 8, and causing the snap-fit ​​protrusion 902 to be inserted into the corresponding snap-fit ​​area 803, thus realizing the pre-assembly of the panel connecting component 9 and the pressure frame 8. S3. After pre-assembly, start the strip welding assembly 3 on each clamping assembly 2. The dual-axis push rod 301 pushes the third lead screw bracket 302 to move to the welding station. The third motor 303 drives the third lead screw 304 to rotate, adjust the height position of the first welding head 307, and at the same time adjust the motor 308 to drive the hinge shaft to rotate, adjust the tilt angle of the first welding head 307, so that the first welding head 307 is aligned with the snap-fit ​​strip of the pressure frame 8 and the panel connecting component 9, and the butt joint strip of the pressure frame 8 and the pressure pipe 10 in sequence, to complete the continuous automated welding operation of multiple straight strips. The strips mainly include the first straight strip formed between the outer edge of the vertical plate of the angle plate 901 and the outer wall of the pressure frame 8, and the two second straight strips formed between the long side of the snap-fit ​​protrusion 902 and the outer wall of the pressure frame 8.

[0041] S4. After the strip weld is completed, the strip weld assembly 3 is reset, and a panel 12 is installed between the grooves 903 of the two opposite panel connecting components 9. The fourth motor 402 drives the fourth lead screw 403 to rotate, causing the upper horizontal displacement assembly 5 to descend to the preset welding height. Then, the fifth motor 502 of the upper horizontal displacement assembly 5 drives the fifth lead screw to rotate, causing the two sets of suspension steering assemblies 6 to move laterally, so that the suspension steering assembly 6 is moved above the first welding position. The lifting assembly 4 drives the circumferential weld assembly 7 to descend. The two sets of grippers of the circumferential weld assembly 7 close relative to each other, and clamp the fixed pull rod 132 through the clamping groove of the supporting horizontal plate 706. At the same time, the two arc-shaped slide rails 703 on both sides are joined to form a complete circular slide rail, which wraps around the tensile block 133 and the surface. The outer side of the butt joint circumferential seam of plate 12; then the slider 704 moves in a circular motion along the arc-shaped slide rail 703, driving the second welding head 705 to rotate uniformly around the circumferential seam, completing the welding of the tensile round block 133 on one side of the panel tensile member 13 with the butt joint circumferential seam of panel 12; the circumferential seam welding assembly 7 is reset, the lifting assembly 4 drives the circumferential seam welding assembly 7 to move upward, the fifth motor 502 of the upper horizontal displacement assembly 5 drives the fifth lead screw to move, driving the two sets of suspension steering assemblies 6 to move laterally, so that the suspension steering assembly 6 is moved to the position above the second welding position, the suspension steering assembly 6 drives the circumferential seam welding assembly 7 to rotate 180 degrees, the lifting assembly 4 drives the circumferential seam welding assembly 7 to descend, completing the welding of the tensile round block 133 on the other side of the panel tensile member 13 with the butt joint circumferential seam of panel 12; S5. The clamping component 2 releases its adsorption and snap-fit ​​fixation on the cold storage insulation board frame, and the welded cold storage insulation board frame is taken out.

[0042] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated welding system for producing cold storage insulation panel frames, characterized in that, It includes a lower horizontal displacement assembly, a clamping assembly, a strip welded assembly, a lifting assembly, an upper horizontal displacement assembly, a suspension steering assembly, and a circumferential welded assembly; The clamping assembly is used to adsorb and fix the pressure-bearing frame, and to snap-fit ​​panel connecting components for connecting the panel on both sides; there are two clamping assemblies, and they are driven by the lower horizontal displacement assembly to move relative to each other in the horizontal longitudinal direction, thereby causing the pressure-bearing frames on both sides to snap-fit ​​onto the ends of the pressure-bearing pipe. The interior of the pressure-bearing frame is pre-installed with a connecting pipe that can communicate with the pressure-bearing pipe to form a pre-cooling pipeline. The pressure-bearing pipe is pre-sleeved with multiple panel tensile members; each clamping assembly is equipped with two strip welding assemblies for welding the panel connecting components, the pressure-bearing frame, or the strip seam at the panel connection. The seam welding assembly includes a dual-axis push rod, a third lead screw support, a third motor, a third lead screw, a third carrier plate, an ear seat, a first welding head, and an adjusting motor. The dual-axis push rod is mounted on the side plate of the second lead screw support. The movable end of the dual-axis push rod is equipped with the third lead screw support. The third lead screw, driven to rotate by the third motor, is movably supported in the third lead screw support. A rotation-restricted third carrier plate is sleeved on the outer side of the third lead screw. An ear seat and an adjusting motor are mounted on the third carrier plate. The ear seat is hinged to the first welding head. The output end of the adjusting motor is connected to the hinge shaft and is used to adjust the tilt angle of the first welding head along the horizontal plane. The upper horizontal displacement component is positioned above the lower horizontal displacement component and is driven to move up and down by the lifting component; the upper horizontal displacement component can drive two parallel suspension steering components to move horizontally; the lower end of the suspension steering component is equipped with a circumferential welding component for welding the panel tensile members and the circumferential seam at the panel connection. The circumferential welding assembly includes a mechanical gripper, a suspension vertical plate, an arc-shaped slide rail, a slider, and a second welding head. The top of the mechanical gripper is fixed on a corresponding suspension shaft. The mechanical gripper has two gripper parts that can move relative to each other, and each gripper part is connected to a suspension vertical plate. Several arc-shaped slide rails are installed on the suspension vertical plate. Two opposing arc-shaped slide rails are joined together to form a circular slide rail. A slider that forms an arc-shaped guide rail pair with one of the arc-shaped slide rails is installed on it. A second welding head is installed on the outer side of the slider. The suspension vertical plate has a support horizontal plate for assisting in fixing the arc-shaped slide rails. The inner end of the support horizontal plate has a clamping groove for facilitating the clamping of the pull rod.

2. The automated welding system for producing cold storage insulation panel frames according to claim 1, characterized in that, The pressure-bearing frame, panel connecting components, pressure-bearing pipes, connecting pipes, panels, and panel tensile components together form the skeleton of the cold storage insulation panel; The pressure-bearing frame includes a rectangular frame, the inner cavity of which is divided into multiple snap-fit ​​areas by a partition. Each snap-fit ​​area has a snap-fit ​​tube on the outer side of its upper side plate. The inner end of the snap-fit ​​tube has a first opening for easy installation of a connecting tube. The partition has a second opening for easy installation of a connecting tube. The panel connecting component includes an angle plate. The outer side of the vertical plate portion of the angle plate is provided with several snap-fit ​​protrusions that cooperate with the snap-fit ​​area. The outer end of the horizontal plate portion of the angle plate is provided with a hook portion. The hook portion includes a hook groove for installing the panel and a slide rail groove for snapping onto the cold storage slide rail component. The panel includes a vertical plate, and hooks that mate with the hook groove are installed at both the upper and lower ends of the vertical plate. The panel tensile member consists of a slip ring, a tie rod, and tensile blocks. The inner diameter of the slip ring matches the outer diameter of the pressure-bearing pipe, and tensile blocks are connected to both sides of the slip ring via tie rods.

3. The automated welding system for producing cold storage insulation panel frames according to claim 2, characterized in that, The lower horizontal displacement assembly includes a first lead screw support, a first motor, a gearbox, a first lead screw, a first carrier plate, and a support plate. The first motor and the gearbox are installed on the inner side of the web of the first lead screw support. The output shaft of the first motor is connected to the middle part of the first lead screw via a steering gear set placed in the gearbox. The two ends of the first lead screw are provided with first lead screw sections with opposite directions of rotation. A first carrier plate with restricted rotation is sleeved on the outer side of each first lead screw section. A support plate for supporting the pressure frame is installed on the inner side of the first carrier plate.

4. The automated welding system for producing cold storage insulation panel frames according to claim 3, characterized in that, The clamping assembly includes a second lead screw support, a protrusion, a suction cup, a second motor, a second lead screw, a second carrier plate, and a rail clamping head. The second lead screw support is fixed on the corresponding first carrier plate. A protrusion is installed on the inner side of the web of the second lead screw support, and a second motor is installed on the outer side of the web of the second lead screw support. A suction cup for adsorbing the pressure frame is embedded in the protrusion. The output shaft of the second motor is connected to the middle part of the second lead screw via a steering gear set placed in the protrusion. The two ends of the second lead screw are provided with second lead screw sections with opposite directions of rotation. A second carrier plate with restricted rotation is sleeved on the outer side of each second lead screw section. A rail clamping head that mates with the slide rail groove is installed on the outer end of the second carrier plate.

5. The automated welding system for producing cold storage insulation panel frames according to claim 4, characterized in that, The lifting assembly includes a fourth lead screw support, a fourth motor, a fourth lead screw, and a fourth carrier plate. The fourth lead screw support movably supports the fourth lead screw, which is driven to rotate by the fourth motor. The fourth carrier plate, which restricts the rotation of the fourth lead screw, is sleeved on the outside of the fourth lead screw.

6. The automated welding system for producing cold storage insulation panel frames according to claim 5, characterized in that, The upper horizontal displacement assembly includes a fifth lead screw support, a fifth motor, a fifth lead screw, and a fifth carrier plate. The fifth lead screw support movably supports a fifth lead screw that is driven to rotate by the fifth motor, and a fifth carrier plate with restricted rotation is sleeved on the outer side of the fifth lead screw.

7. The automated welding system for producing cold storage insulation panel frames according to claim 6, characterized in that, The suspension steering assembly includes a suspension box, a suspension shaft is movably supported on the lower side of the suspension box, a steering motor is installed on the side end of the suspension box, and the output shaft of the steering motor is connected to the suspension shaft via a steering gear set.

8. An automated welding method for producing cold storage insulation panel frames, implemented based on the automated welding system for producing cold storage insulation panel frames as described in claim 7, characterized in that, Includes the following steps: S1. The lower horizontal displacement component drives the clamping component to move towards each other, clamping the pressure frame of the pre-installed connecting pipe onto both ends of the pressure pipe, thus completing the pre-installation of the three components. S2. The clamping component uses a suction cup to fix the pressure frame, and the driving rail head drives the panel connecting component to be clamped and fixed on the pressure frame. S3. After the strip weld assembly is positioned, the strip weld between the pressure frame and the panel connection component and the pressure pipe is completed through the first welding head. S4. After the panel is installed, the lifting component lowers the horizontal displacement component, the suspension steering component carries the circumferential welding component into place, the circumferential welding component clamps the tie rod and splices the arc-shaped slide rail, and the second welding head travels along the circumference of the slide rail to complete the circumferential welding on both sides of the panel. S5. The clamping components are released, and the finished insulation board frame is removed.

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