Semi-automatic welding equipment for expansion tank

Abstract

The invention discloses semi-automatic welding equipment for an expansion tank, and belongs to the technical field of automobile part production equipment.The semi-automatic welding equipment for the expansion tank comprises a base, a moving assembly is arranged on the base, and positioning assemblies used for fixing a left tank body and a right tank body respectively are symmetrically and movably arranged at the two ends of the moving assembly; a storage heat preservation assembly is arranged in the middle of the base, a floating attaching assembly is movably arranged above the base, the floating attaching assembly is movably attached to the sides, close to each other, of the left box body and the right box body, and a drawing assembly connected with the floating attaching assembly is arranged on the storage heat preservation assembly. And an opening and closing assembly matched with the drawing assembly is arranged on the side, close to the base, of the storage heat preservation assembly, the opening and closing assembly is used for being matched with the storage heat preservation assembly to conduct heat preservation on the floating attachment assembly, and the beneficial effects of multi-area stable positioning, floating attachment fusion, flexible opening and closing, effective heat preservation, small heat loss and good welding effect are achieved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing equipment technology, specifically to a semi-automatic welding equipment for expansion tanks. Background Technology

[0002] The automotive expansion tank (also known as the auxiliary water tank or compensating water tank) is a core pressure stabilizing / cooling component of a closed cooling system. It is usually a semi-transparent engineering plastic container, installed in a high position in the engine compartment, with MIN / MAX level markings and a pressure sealing cap, and connected to the main radiator and engine water passages via hoses.

[0003] During the welding process of automotive expansion tanks, the molten surfaces of the left and right tanks need to be brought into contact with the welding contact surfaces of the corresponding hot plates to melt the molten surfaces. However, in actual welding, the molten surfaces of the left and right tanks to be welded may be uneven. In existing welding equipment, the state of the hot plates is fixed and cannot be fine-tuned according to the molten surface, making it impossible for the welding contact surfaces of the hot plates to maintain effective contact with the molten surfaces. This results in the corresponding molten surfaces not being effectively melted, leading to air leakage problems in the welding of the left and right tanks later on, affecting the performance of the expansion tank.

[0004] Therefore, there is a need to provide a semi-automatic welding device for expansion tanks, which aims to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a semi-automatic welding equipment for expansion tanks to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A semi-automatic welding device for expansion tanks includes a base and further includes: The movable component is mounted on the base. Positioning components, symmetrically and movably located at both ends of the movable component, are used to fix the left and right boxes respectively; The insulation components are stored in the middle rear part of the base; A floating bonding component is movably mounted above the base; the floating bonding component is movably bonded to the side of the left and right housings that are close to each other; The pull-out component is located on the storage and insulation component and connected to the floating bonding component; An opening and closing component is located on the side of the storage and insulation component near the base and cooperates with the pull-out component. The opening and closing component is used to cooperate with the storage and insulation component to insulate the floating bonding component. The floating bonding assembly includes a mounting plate connected to the pull-out assembly. Hot plates are movably mounted on both sides of the mounting plate. The two mounting plates are connected by a ball joint rod, which is ball-jointed to the center of the mounting plate. Several through slots are symmetrically formed on the mounting plate. A connecting arc plate, which is movably mounted within each through slot and connected to the sidewalls of the two hot plates, is also movably mounted within the through slot. A slider is slidably mounted within the through slot. One side of the slider has an abutting wheel that movably abuts against the arc edge of the connecting arc plate. A spring b is connected between the other side of the slider and the through slot.

[0007] As a further embodiment of the present invention, the moving component includes guide rails symmetrically arranged on the base, with sliding frames symmetrically and slidably provided at both ends of the guide rails. Two sliding frames located at the same end of the base are connected by a connecting plate. A bidirectional lead screw is rotatably provided on the base, with both ends of the bidirectional lead screw threadedly connected to the symmetrically arranged connecting plate. One end of the bidirectional lead screw is connected to a motor a mounted on the base.

[0008] As a further embodiment of the present invention, the positioning component includes a mounting frame connected to a corresponding sliding frame. The mounting frame has symmetrically arranged support seats at its ends, and a placement frame movably mounted on the mounting frame between the symmetrically arranged support seats. The placement frame has a placement cavity for placing the left or right box. Side plates are provided at the front and rear ends of the outer side walls of the placement frame. Several sliding rods that slide with the support seats are connected between two corresponding side plates at the front and rear ends. A spring a is sleeved on the outside of the sliding rod and connected between the support seats and the side plates. A suction cup that fits against the back of the left or right box is provided on the side of the two placement frames that is far apart from each other. An air pump is provided on the mounting frame, and the air pump is connected to the suction cup via an air guide pipe.

[0009] As a further embodiment of the present invention, the storage and insulation component includes a storage frame movably disposed on the rear side of the middle part of the base. The bottom of the storage frame is connected to the base through a support frame, and the upper part of the storage frame is provided with an extension frame located directly above the middle part of the base.

[0010] As a further embodiment of the present invention, the pull-out assembly includes a screw rotatably disposed between the storage frame and the extension frame, one end of the screw being connected to a motor b mounted on the storage frame, and a threaded sliding plate threadedly connected to the screw being slidably disposed between the storage frame and the extension frame, and a connecting rod connected to the floating bonding assembly being mounted at the bottom of the threaded sliding plate.

[0011] As a further embodiment of the present invention, the opening and closing assembly includes a movable top bar disposed on the top of the threaded sliding plate. Lifting sliding plates are slidably disposed on both sides of the storage frame near the protruding frame end. The tops of the two lifting sliding plates are rotatably connected by rollers. The rollers movably abut against the movable top bar and the top of the storage frame. The bottoms of the two lifting sliding plates are connected by a counterweight bar. The counterweight bar movably engages with guide rods symmetrically disposed at the bottom of the storage frame. The lifting sliding plate has several rack sections. Several rotating rods are symmetrically and rotatably disposed on both sides of the storage frame. Each rotating rod has a transmission gear meshing with a corresponding rack section. A spiral groove is spirally disposed on the rotating rod. A movable sleeve that slidably engages with the spiral groove is movably sleeved on the rotating rod. The movable sleeve is connected to the closing plate.

[0012] As a further embodiment of the present invention, the movable top bar is configured as an isosceles trapezoidal bar.

[0013] As a further embodiment of the present invention, at least four air guide tubes are provided, and several air guide tubes are evenly distributed on the suction cup.

[0014] As a further embodiment of the present invention, the side of the connecting arc plate near the abutting wheel is provided with a V-shaped concave arc surface.

[0015] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: 1. In this invention, the moving component drives the left and right boxes to move closer together by connecting with the positioning component, so that the sides of the left and right boxes that are close to each other can contact the floating bonding component respectively, and heat the corresponding melting surfaces. The floating bonding component can tilt slightly with the melting surfaces of the left and right boxes to ensure uniform bonding between the left and right boxes throughout the process, avoiding uneven welding surfaces, uneven melting on one side and uneven melting on the other side, and air leakage in the later stage, thus improving the welding effect. 2. In this invention, after the melting operation of the molten surfaces of the left and right housings, the pull-out assembly pulls the floating bonding assembly outward, releasing the contact between the hot plate and the left or right housing. Spring b returns to its original length and pushes the slider away from the central vertical axis of the mounting plate. The slider restores the parallel state of the hot plate and the mounting plate through the movable contact of the abutment wheel and the connecting arc plate, as well as the ball joint of the ball joint rod and the mounting plate. This facilitates the subsequent storage and heat preservation operation of the floating bonding assembly. 3. In this invention, the positioning component can stably position the left and right boxes in multiple areas, avoiding deformation of the left and right boxes during welding that would affect their welding accuracy. The pull-out component quickly pulls out the floating bonding component and moves it into the storage and insulation component. The moving component pressurizes the molten surface between the left and right boxes by continuing to move the positioning component, which facilitates the fusion, crystallization and solidification of the molten surfaces of the left and right boxes. 4. In this invention, the opening and closing component, in conjunction with the storage and insulation component, provides insulation for the internal space of the storage and insulation component. This allows for insulation of the floating bonding component that is no longer in contact with the left and right boxes, preventing the floating bonding component from directly contacting the outside air when it is not in contact with the molten surfaces of the left and right boxes, thus reducing heat loss and energy consumption. At the same time, it can maintain the temperature of the floating bonding component within a suitable temperature range, preventing uneven temperatures on both sides of the floating bonding component from causing air leakage and poor sealing during later welding.

[0016] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the moving component in this invention.

[0019] Figure 3 This is a schematic diagram of the positioning component in this invention.

[0020] Figure 4 This is a cross-sectional view of the placement frame in this invention.

[0021] Figure 5 This is a schematic diagram of the structure of the heat preservation component in this invention.

[0022] Figure 6 This is a schematic diagram of the pull-out component in this invention.

[0023] Figure 7 In this invention Figure 5 A magnified view of a portion at point A.

[0024] Figure 8 In this invention Figure 7 A magnified view of a portion of point B.

[0025] Figure 9 This is a first cross-sectional view of the floating bonding component in this invention.

[0026] Figure 10 This is a second cross-sectional view of the floating bonding component in this invention.

[0027] Reference numerals: 1. Base; 2. Moving components; 201. Guide rail; 202. Sliding frame; 203. Connecting plate; 204. Two-way lead screw; 205. Motor a; 3. Positioning components; 301. Mounting bracket; 302. Support base; 303. Slide rod; 304. Side plate; 305. Spring a; 306. Placement frame; 307. Suction cup; 308. Air pump; 309. Air guide tube; 4. Storage and insulation components; 401. Storage frame; 402. Support frame; 403. Extending frame; 5. Pull-out assembly; 501. Motor b; 502. Screw; 503. Threaded slide plate; 504. Connecting rod; 6. Opening and closing assembly; 601. Movable top bar; 602. Roller; 603. Lifting slide plate; 604. Rack and pinion section; 605. Counterweight bar; 606. Guide rod; 607. Transmission gear; 608. Rotating rod; 609. Spiral groove; 610. Movable sleeve; 611. Closing plate; 7. Floating bonding assembly; 701. Mounting plate; 702. Hot plate; 703. Ball joint rod; 704. Through groove; 705. Connecting arc plate; 706. Slider; 707. Abutment wheel; 708. Spring b; 8. Left housing; 9. Right housing. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0030] In one embodiment of the present invention, see Figure 1A semi-automatic welding device for expansion tanks includes a base 1, on which a movable component 2 is mounted. The movable component 2 has symmetrically mounted positioning components 3 at both ends for fixing a left tank 8 and a right tank 9, respectively. A storage and insulation component 4 is mounted on the rear side of the middle portion of the base 1. A floating bonding component 7 is movably mounted above the middle portion of the base 1, and the floating bonding component 7 is movably bonded to the side of the left tank 8 and the right tank 9 that are close to each other. A pull-out component 5 connected to the floating bonding component 7 is mounted on the storage and insulation component 4. An opening and closing component 6 cooperating with the pull-out component 5 is mounted on the side of the storage and insulation component 4 near the base 1. The opening and closing component 6 is used to cooperate with the storage and insulation component 4 to insulate the floating bonding component 7.

[0031] In this embodiment, the positioning component 3 can stably position the left box 8 and the right box 9 in multiple areas, avoiding deformation of the left box 8 and the right box 9 during the welding process, which would affect the welding accuracy of the two. The moving component 2, connected to the positioning component 3, moves the left box 8 and the right box 9 closer to each other, so that the sides of the left box 8 and the right box 9 that are close to each other can contact the floating bonding component 7 respectively, and melt the corresponding molten surfaces. The floating bonding component 7 can tilt slightly with the molten surfaces of the left box 8 and the right box 9 to ensure uniform bonding between the left box 8 and the right box 9 throughout the process, avoiding uneven welding surfaces, uneven melting on one side and uneven melting on the other side, and air leakage problems in the later stage.

[0032] Furthermore, the pull-out component 5 quickly pulls out the floating bonding component 7 and moves it into the storage and insulation component 4. The moving component 2 continues to pressurize the molten surface between the left box 8 and the right box 9 by driving the positioning component 3 to move, thus achieving the molten welding process of the left box 8 and the right box 9. The opening and closing component 6, in conjunction with the storage and insulation component 4, provides insulation for the internal space of the storage and insulation component 4. This can perform insulation operation on the floating bonding component 7 when it is no longer in contact with the molten surface of the left box 8 and the right box 9, avoiding the problem of rapid heat loss caused by direct contact between the floating bonding component 7 and the outside air when it is not in contact with the molten surface of the left box 8 and the right box 9. This reduces heat loss and energy consumption. At the same time, it can keep the temperature of the floating bonding component 7 within a suitable temperature range, avoiding the problem of air leakage and poor sealing caused by uneven temperature on both sides of the floating bonding component 7 in the later welding process.

[0033] In one embodiment of the present invention, see Figures 1-2The moving component 2 includes guide rails 201 symmetrically arranged on the base 1. The two ends of the guide rails 201 are symmetrically and slidably provided with sliding frames 202. The two sliding frames 202 located at the same end of the base 1 are connected by a connecting plate 203. A bidirectional lead screw 204 is rotatably provided on the base 1. The two ends of the bidirectional lead screw 204 are respectively threaded to the symmetrically arranged connecting plate 203. One end of the bidirectional lead screw 204 is connected to a motor a205 installed on the base 1.

[0034] In this embodiment, in the initial state, the symmetrically arranged connecting plates 203 are far apart from each other. At this time, the two positioning components 3 are far apart from each other, and the left box 8 and the right box 9 can be stably positioned by the two positioning components 3 respectively.

[0035] Furthermore, the motor a205 drives the bidirectional lead screw 204 to rotate in the forward direction. The bidirectional lead screw 204 drives the two positioning components 3 to move closer to each other through the threaded engagement with the connecting plate 203 and the sliding engagement with the sliding frame 202 and the guide rail 201. The positioning components 3 drive the left box 8 and the right box 9 on them to move synchronously, so that the melting surfaces of the left box 8 and the right box 9 can come into contact with the floating bonding component 7, thereby achieving the melting of the corresponding melting surfaces.

[0036] Furthermore, after the melting is complete, the pull-out component 5 pulls out the floating bonding component 7, and the motor a205 continues to drive the bidirectional lead screw 204 to rotate in the forward direction, which facilitates the pressurized bonding of the molten surfaces between the left box 8 and the right box 9, and facilitates the fusion, crystallization and solidification of the molten surfaces between the left box 8 and the right box 9. Then, the pressure is maintained for a period of time to prevent warping and air leakage.

[0037] Furthermore, after the welding of the left housing 8 and the right housing 9 is completed, the motor a205 drives the bidirectional lead screw 204 to rotate in the opposite direction. The bidirectional lead screw 204 drives the two positioning components 3 to move away from each other through the threaded engagement with the connecting plate 203 and the sliding engagement with the sliding frame 202 and the guide rail 201. At the same time, the adsorption positioning engagement between the positioning components 3 and the left housing 8 and the right housing 9 is released, which facilitates the removal of the welded parts and the placement of new left housing 8 and right housing 9 to be welded.

[0038] In one embodiment of the present invention, see Figures 1-4The positioning component 3 includes a mounting frame 301 connected to a corresponding sliding frame 202. Support seats 302 are symmetrically arranged at one end of the mounting frame 301 that is close to each other. Placement frames 306 are movably mounted on the mounting frame 301 between the symmetrically arranged support seats 302. Placement frames 306 have placement cavities inside for placing the left box 8 or the right box 9. Side plates 304 are provided at the front and rear ends of the outer side walls of the placement frames 306. Several sliding rods 303 that slide in cooperation with the support seats 302 are connected between two corresponding side plates 304 at the front and rear ends. Springs a305 sleeved on the outside of the sliding rods 303 are connected between the support seats 302 and the side plates 304. Suction cups 307 that fit against the back of the left box 8 or the right box 9 are provided on the side of the two placement frames 306 that is far from each other. An air pump 308 is provided on the mounting frame 301, and the air pump 308 is connected to the suction cups 307 through an air guide pipe 309.

[0039] In this embodiment, in the initial state, the spring a305 is at its original length, and the distance between the two placement frames 306 is less than the distance between the corresponding support seats 302 at both ends, which can ensure the pressure-holding and bonding of the left box 8 and the right box 9 in the later stage.

[0040] Furthermore, the left box 8 or the right box 9 is placed in the corresponding placement cavity from the side of the placement frame 306 that is close to each other, so that the back of the left box 8 or the right box 9 is in contact with the suction cup 307. The air pump 308 is connected to the air guide pipe 309 to extract the air from the space enclosed by the back of the left box 8 or the right box 9 and the suction cup 307, so as to achieve the adsorption and positioning of the left box 8 or the right box 9. At the same time, the cooperation between the inner side wall of the placement frame 306 and the outer wall of the left box 8 or the right box 9 avoids the problem of deformation of the left box 8 or the right box 9 during the welding process, thereby improving the welding accuracy between the left box 8 and the right box 9.

[0041] Furthermore, the moving component 2 drives the support base 302 to move synchronously by moving the symmetrically arranged mounting brackets 301 closer to each other. The support base 302 drives the placement frame 306 to move synchronously by sliding with the slide rod 303 and connecting with the spring a305. The placement frame 306 drives the corresponding left box 8 or right box 9 to move synchronously, so that the left box 8 and right box 9 move closer to each other.

[0042] Furthermore, when the corresponding molten surfaces of the left housing 8 and the right housing 9 come into contact with the floating bonding component 7, or when the molten surface of the left housing 8 comes into contact with the molten surface of the right housing 9, the symmetrically arranged connecting plates 203 continue to move closer to each other. The connecting plates 203, through connection with the sliding frame 202, drive the two mounting brackets 301 to continue moving closer to each other. Since the positions of the left housing 8 and the right housing 9 are relatively fixed at this time, the mounting brackets 301 drive the support base 302 to continue moving. The spring a305 is stressed and contracts, which can squeeze the placement frame 306, making it easier for the corresponding molten surfaces of the left housing 8 and the right housing 9 to fit tightly with the floating bonding component 7, or for the molten surface of the left housing 8 to fuse with the molten surface of the right housing 9 under pressure, thereby improving the fusion welding effect and avoiding problems such as welding leakage and poor sealing in the later stages.

[0043] It is worth noting that at least four air guide tubes 309 are provided, and several air guide tubes 309 are evenly distributed on the suction cup 307, which facilitates uniform adsorption between the suction cup 307 and the left box 8 or the right box 9, and improves the stability of the positioning of the left box 8 or the right box 9.

[0044] In one embodiment of the present invention, see Figure 1 , Figures 5-6 The storage and heat preservation component 4 includes a storage frame 401 movably disposed on the rear side of the middle part of the base 1. The bottom of the storage frame 401 is connected to the base 1 through a support frame 402. The upper part of the storage frame 401 is provided with an extension frame 403 located directly above the middle part of the base 1.

[0045] In this embodiment, the storage frame 401 forms a relatively closed space with the floating bonding component 7 to keep the temperature of the floating bonding component 7 warm. This reduces the problem of rapid heat loss caused by the floating bonding component 7 directly contacting the external space when it is not in contact with the left box 8 or the right box 9. It can effectively reduce the time required for the floating bonding component 7 to heat up and the energy consumed by heating up, thus improving work efficiency.

[0046] In one embodiment of the present invention, see Figure 1 , Figures 5-6 The pull-out assembly 5 includes a screw 502 rotatably disposed between the storage frame 401 and the extension frame 403. One end of the screw 502 is connected to a motor b501 mounted on the storage frame 401. A threaded slide plate 503 threadedly connected to the screw 502 is slidably disposed between the storage frame 401 and the extension frame 403. A connecting rod 504 connected to the floating bonding assembly 7 is mounted at the bottom of the threaded slide plate 503.

[0047] In this embodiment, initially, the floating bonding component 7 is located inside the storage frame 401 for heat preservation. After the positioning component 3 positions the left box 8 and the right box 9 respectively, the motor b501 drives the screw 502 to rotate in the forward direction. The screw 502 moves the floating bonding component 7 directly above the base 1 by means of threaded connection with the threaded slide plate 503 and sliding engagement between the threaded slide plate 503 and the storage frame 401 and the extension frame 403. This positions the floating bonding component 7 between the left box 8 and the right box 9. The moving component 2 moves the left box 8 and the right box 9 closer together by moving the positioning components 3 at both ends closer together. This allows the molten surfaces of the left box 8 and the right box 9 to contact the floating bonding component 7, achieving melting of the corresponding molten surfaces.

[0048] Furthermore, after the melting surface treatment of the left box 8 and the right box 9 is completed, the motor b501 drives the screw 502 to rotate in the opposite direction. The screw 502 drives the floating bonding component 7 to move towards the inside of the storage frame 401 by means of threaded connection with the threaded slide plate 503 and sliding engagement between the threaded slide plate 503 and the storage frame 401 and the extension frame 403, thereby releasing the contact between the floating bonding component 7 and the melting surface of the left box 8 and the right box 9, which facilitates the fusion, crystallization and solidification treatment of the melting surface of the left box 8 and the right box 9.

[0049] In one embodiment of the present invention, see Figure 1 , Figures 5-6 , Figures 9-10 The floating bonding assembly 7 includes a mounting plate 701 connected to a connecting rod 504. Hot plates 702 are movably mounted on both sides of the mounting plate 701. The two mounting plates 701 are connected by a ball joint rod 703, which is ball-jointed to the center of the mounting plate 701. Several through slots 704 are symmetrically opened on the mounting plate 701. A connecting arc plate 705, which is movably mounted within the through slot 704 and connected to the sidewalls of the two hot plates 702, is slidably mounted within the through slot 704. A slider 706 is slidably mounted within the through slot 704. One side of the slider 706 has an abutment wheel 707 that movably abuts against the arc edge of the connecting arc plate 705. A spring b708 is connected between the other side of the slider 706 and the through slot 704.

[0050] In this embodiment, in the initial state, the spring b708 is at its original length, and the abutting wheel 707 abuts against the middle of the connecting arc plate 705. At this time, the plane of the hot plate 702 is parallel to the plane of the mounting plate 701.

[0051] Furthermore, when the molten surfaces of the left box 8 and the right box 9 are parallel to the mounting plate 701, the mounting plate 701 and the hot plate 702 are also in a parallel state, which can ensure the orderly melting of the molten surfaces of the left box 8 and the right box 9, facilitating the subsequent fusion, crystallization and solidification of the molten surfaces.

[0052] Furthermore, when the molten surfaces of the left housing 8 and the right housing 9 are not level, i.e., the molten surfaces are not parallel to the mounting plate 701, when the welding contact surface of the hot plate 702 comes into contact with the corresponding molten surface of the left housing 8 or the right housing 9, the hot plate 702 will automatically make a slight adjustment according to the shape of the molten surfaces of the left housing 8 and the right housing 9 under the extrusion pressure of the left housing 8 or the right housing 9, so that the welding contact surface of the hot plate 702 can fit against the molten surface of the left housing 8 or the right housing 9.

[0053] Specifically, when the molten surfaces of the left box 8 and the right box 9 are uneven, one end of the molten surface will first come into contact with the welding contact surface of the hot plate 702. As the left box 8 and the right box 9 approach each other, the corresponding end of the molten surface will push the welding contact surface of the hot plate 702 to rotate horizontally around the central vertical axis of the mounting plate 701, so that the welding contact surface of the hot plate 702 and the molten surface are tightly fitted. Since the two hot plates 702 are connected by several connecting arc plates 705, the synchronous rotation between the two hot plates 702 can be ensured, thereby ensuring the parallel state between the molten surfaces of the left box 8 and the right box 9, which facilitates the reliable fusion, crystallization and solidification of the two molten surfaces in the later stage.

[0054] Furthermore, during the rotation of the hot plate 702 around the central vertical axis of the mounting plate 701, the hot plate 702 drives the connecting arc plate 705 to rotate synchronously around the central vertical axis of the mounting plate 701. The arc edge of the connecting arc plate 705 pushes the slider 706 closer to the central vertical axis of the mounting plate 701 by moving it against the abutting wheel 707 and slidingly engaging the slider 706 and the through groove 704. The spring b708 is stressed and contracts. Through the elastic force of the spring b708, the welding contact surface of the hot plate 702 can be ensured to be tightly fitted with the molten surface of the left box 8 or the right box 9.

[0055] Furthermore, after the melting operation of the molten surfaces of the left box 8 and the right box 9, the pull-out assembly 5 pulls out the floating bonding assembly 7 to the outside, releasing the contact between the hot plate 702 and the left box 8 or the right box 9. The spring b708 returns to its original length and pushes the slider 706 away from the central vertical axis of the mounting plate 701. The slider 706 restores the parallel state of the hot plate 702 and the mounting plate 701 through the movable contact of the abutment wheel 707 and the connecting arc plate 705, and the ball joint rod 703 and the mounting plate 701, which facilitates the subsequent storage and heat preservation operation of the floating bonding assembly 7.

[0056] It is worth noting that the welding contact surface of the hot plate 702 is coated with a Teflon coating after hard anodizing. Through the above dual treatment, the long-term anti-stick effect of the hot plate 702 can be improved.

[0057] It is worth noting that the side of the connecting arc plate 705 near the abutting wheel 707 is designed with a V-shaped concave arc surface, which can ensure that the hot plate 702 can be reset by abutting the abutting wheel 707 through the V-shaped concave arc surface and connecting the spring b708 and the slider 706 after rotating forward or backward, thereby improving the flexibility of the device.

[0058] In one embodiment of the present invention, see Figure 1 , Figures 5-8 The opening and closing assembly 6 includes a movable top bar 601 disposed on the top of the threaded sliding plate 503. Lifting sliding plates 603 are slidably disposed on both sides of the storage frame 401 near the end of the protruding frame 403. The tops of the two lifting sliding plates 603 are rotatably connected by rollers 602. The rollers 602 are in movable contact with the movable top bar 601 and the top of the storage frame 401. The bottoms of the two lifting sliding plates 603 are connected by counterweights 605. The counterweights 605 are symmetrically disposed on the threaded sliding plate 503. The guide rod 606 at the bottom of the storage frame 401 is movably engaged. The lifting slide plate 603 is provided with several rack parts 604. Several rotating rods 608 are symmetrically and rotatably arranged on both sides of the storage frame 401. The rotating rod 608 is provided with a transmission gear 607 that meshes with the corresponding rack part 604. The rotating rod 608 is provided with a spiral groove 609. A movable sleeve 610 that slides with the spiral groove 609 is movably sleeved on the rotating rod 608. The movable sleeve 610 is connected to the closing plate 611.

[0059] In this embodiment, in the initial state, the roller 602 and the top of the storage frame 401 are in contact, the counterweight 605 is at the lowest point, and the top teeth of the transmission gear 607 and the rack 604 are engaged. At this time, the movable top bar 601 is not in contact with the roller 602, and the floating bonding component 7 is located inside the storage frame 401. The storage frame 401 has an opening on the left side for the floating bonding component 7 to move in and out. The counterweight 605 ensures that the opening on the left side of the storage frame 401 is closed in the initial state.

[0060] Furthermore, when it is necessary to remove the floating bonding component 7, the pull-out component 5 moves the floating bonding component 7 to the outside of the storage frame 401. At the same time, the threaded slide plate 503 moves the movable top bar 601 synchronously. The left end of the movable top bar 601 pushes the roller 602 upward by first contacting the roller 602. The roller 602 moves the lifting slide plate 603 upward by rotating with the lifting slide plate 603 and sliding with the counterweight bar 605 and the guide rod 606. The lifting slide plate 603 moves the symmetrically arranged closed plates 611 away from each other by meshing the rack part 604 with the transmission gear 607 and sliding with the spiral groove 609 and the movable sleeve 610, thereby opening the left opening of the storage frame 401 to facilitate the removal of the floating bonding component 7.

[0061] Furthermore, after the floating bonding component 7 is removed, the right end of the movable top bar 601 is no longer in contact with the roller 602. Under the gravity of the counterweight bar 605, the counterweight bar 605 drives the lifting slide plate 603 to move down through sliding engagement with the guide rod 606. The roller 602 re-engages with the top of the storage frame 401. The lifting slide plate 603 drives the symmetrically arranged closing plates 611 to move closer to each other and abut against each other through the meshing of the rack part 604 with the transmission gear 607 and the sliding engagement of the spiral groove 609 and the movable sleeve 610, thereby closing the left opening of the storage frame 401. This achieves relative sealing of the internal cavity of the storage frame 401, which facilitates the maintenance of the internal cavity temperature and avoids the problem of rapid temperature drop in the cavity. This provides temperature support for the subsequent insulation of the floating bonding component 7 and reduces heat loss.

[0062] Furthermore, when the floating bonding component 7 needs to be stored, the pull-out component 5 moves the floating bonding component 7 towards the inside of the storage frame 401. At the same time, the threaded slide plate 503 moves the movable top bar 601 synchronously. The right end of the movable top bar 601 pushes the roller 602 upward by first contacting the roller 602. The roller 602 moves the lifting slide plate 603 upward by rotating with the lifting slide plate 603 and sliding with the counterweight bar 605 and the guide rod 606. The lifting slide plate 603 moves the symmetrically arranged closed plates 611 away from each other by meshing the rack part 604 with the transmission gear 607 and sliding with the spiral groove 609 and the movable sleeve 610, thereby opening the left opening of the storage frame 401 to facilitate the insertion of the floating bonding component 7.

[0063] Furthermore, after the floating bonding component 7 is moved in, the left end of the movable top bar 601 does not contact the roller 602. Under the gravity of the counterweight bar 605, the counterweight bar 605 drives the lifting slide plate 603 to move down through sliding engagement with the guide rod 606. The roller 602 re-engages with the top of the storage frame 401. The lifting slide plate 603 drives the symmetrically arranged closed plates 6 through the meshing of the rack part 604 with the transmission gear 607, the rotational engagement of the rotating rod 608 and the storage frame 401, and the sliding engagement of the spiral groove 609 and the movable sleeve 610. 11. By bringing the two hot plates close together and abutting each other, the left opening of the storage frame 401 is closed, which can achieve relative sealing of the internal cavity of the storage frame 401. This facilitates the heat preservation treatment of the floating bonding component 7 within the internal cavity of the storage frame 401, avoiding the problem of rapid heat loss caused by the floating bonding component 7 coming into direct contact with air when it is not in contact with the molten surface. At the same time, it is easy to maintain the temperature consistency of the welding contact surfaces of the two hot plates 702, avoiding the problems of air leakage and poor sealing in subsequent welding caused by uneven heating temperature, and improving welding stability and reliability.

[0064] It is worth noting that at least four rotating rods 608 are provided and are evenly distributed on both sides of the storage frame 401, which facilitates the improvement of the stability of the movement of the closing plate 611.

[0065] It is worth noting that the movable top bar 601 is designed as an isosceles trapezoidal bar, which facilitates the smooth movement of the closing plate 611 during the movement of the floating bonding component 7 into and out.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A semi-automatic welding apparatus for expansion tanks, comprising a base (1), characterized in that, Also include: The moving assembly (2) is arranged on the base (1); The positioning assembly (3) is symmetrically and movably arranged at both ends of the moving assembly (2), and is used for fixing the left box body (8) and the right box body (9) respectively; The storage heat preservation assembly (4) is arranged at the middle rear side of the base (1); The floating fitting assembly (7) is movably arranged above the base (1); the floating fitting assembly (7) is movably fitted with the side of the left box body (8) and the right box body (9) close to each other; The pulling assembly (5) is arranged on the storage heat preservation assembly (4) and connected with the floating fitting assembly (7); The opening and closing assembly (6) is arranged on the side of the storage heat preservation assembly (4) close to the base (1) and matched with the pulling assembly (5), and the opening and closing assembly (6) is used for cooperating with the storage heat preservation assembly (4) to heat the floating fitting assembly (7); The floating fitting assembly (7) comprises a mounting plate (701) connected with the pulling assembly (5), heat plates (702) movably arranged on both sides of the mounting plate (701), ball hinge connecting rods (703) connected between the two mounting plates (701), the ball hinge connecting rods (703) being ball-hinged with the middle parts of the mounting plates (701), a plurality of through grooves (704) symmetrically formed in the mounting plates (701), connecting arc plates (705) movably arranged in the through grooves (704) and connected with the side walls of the two heat plates (702) close to each other, sliding blocks (706) slidably arranged in the through grooves (704), abutting wheels (707) arranged on one side of the sliding blocks (706) and movably abutting with the arc edges of the connecting arc plates (705), and springs b (708) connected between the other sides of the sliding blocks (706) and the through grooves (704).

2. The expanding tank semi-automatic welding apparatus according to claim 1, wherein The moving assembly (2) comprises guide rails (201) symmetrically arranged on the base (1), sliding frames (202) symmetrically and slidably arranged at both ends of the guide rails (201), connecting plates (203) connected between the two sliding frames (202) located at the same end of the base (1), a bidirectional screw rod (204) rotatably arranged on the base (1), the bidirectional screw rod (204) being threadedly connected with the symmetrically arranged connecting plates (203) at both ends, and the bidirectional screw rod (204) being connected with a motor a (205) arranged on the base (1) at one end.

3. The expanding tank semi-automatic welding apparatus according to claim 2, wherein The positioning assembly (3) comprises a mounting frame (301) connected with corresponding sliding frames (202), symmetrically provided with support seats (302) at one end close to each other, and movably provided with a placing frame (306) between the symmetrically provided support seats (302) on the mounting frame (301), and the placing frame (306) is internally provided with a placing cavity for placing the left box body (8) or the right box body (9), and the outer side wall of the placing frame (306) is provided with side plates (304) at the front end and the rear end, and a plurality of slide rods (303) in sliding fit with the support seats (302) are connected between the corresponding two side plates (304) at the front end and the rear end, and spring a (305) sleeved outside the slide rod (303) is connected between the support seat (302) and the side plate (304), and the two placing frames (306) are provided with suction cups (307) on the sides away from each other and fitted with the back of the left box body (8) or the right box body (9), and the mounting frame (301) is provided with a suction pump (308), and the suction pump (308) is connected with the suction cup (307) through the air guide pipe (309).

4. The expanding tank semi-automatic welding apparatus according to claim 1, wherein The storage and heat preservation assembly (4) comprises a storage frame (401) movably arranged on the rear side of the middle part of the base (1), and the bottom of the storage frame (401) is connected with the base (1) through a support frame (402), and the upper part of the storage frame (401) is provided with an extension frame (403) located directly above the middle part of the base (1).

5. The expanding tank semi-automatic welding apparatus according to claim 4, wherein The pulling assembly (5) comprises a screw rod (502) rotatably arranged between the storage frame (401) and the extension frame (403), one end of the screw rod (502) is connected with a motor b (501) mounted on the storage frame (401), and a threaded slide plate (503) in threaded connection with the screw rod (502) is slidably arranged between the storage frame (401) and the extension frame (403), and the bottom of the threaded slide plate (503) is provided with a connecting rod (504) connected with the floating fit assembly (7).

6. The expanding tank semi-automatic welding apparatus according to claim 5, wherein The opening and closing assembly (6) comprises a movable top strip (601) arranged on the top of the threaded slide plate (503), the receiving frame (401) is slidably provided with two lifting slide plates (603) on both sides of one end of the extending frame (403), the top of the two lifting slide plates (603) is rotationally connected through a roller (602), the roller (602) is movably abutted with the movable top strip (601), the roller (602) is movably abutted with the top of the receiving frame (401), the bottom of the two lifting slide plates (603) is connected through a counterweight strip (605), the counterweight strip (605) is movably matched with the guide rod (606) symmetrically arranged on the bottom of the receiving frame (401), a plurality of rack portions (604) are arranged on the lifting slide plate (603), a plurality of rotating rods (608) are symmetrically and rotationally arranged on both sides of the receiving frame (401), the rotating rod (608) is provided with a transmission gear (607) engaged with the corresponding rack portion (604), the rotating rod (608) is spirally provided with a spiral slide groove (609), the rotating rod (608) is movably sleeved with a movable sleeve (610) slidably matched with the spiral slide groove (609), and the movable sleeve (610) is connected with the closing plate (611).

7. The expanding tank semi-automatic welding apparatus according to claim 6, wherein The movable top strip (601) is arranged as an isosceles trapezoidal strip.

8. The expanding tank semi-automatic welding apparatus of claim 3, wherein, The air guide pipe (309) is arranged at least four, and a plurality of air guide pipes (309) are uniformly distributed on the suction cup (307).

9. The expanding tank semi-automatic welding apparatus of claim 1, wherein, The side of the connecting arc plate (705) close to the abutting wheel (707) is arranged as a V-shaped concave arc surface. The side of the connecting arc plate (705) close to the abutting wheel (707) is arranged as a V-shaped concave arc surface.

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