Refrigerator angle iron welding special machine

Abstract

The utility model discloses a refrigerator angle iron welding special machine, including welding machine and gas cylinder, welding machine and gas cylinder are all held and are placed on the bottom plate for shifting its position, and the end adjustment of bottom plate is provided with support frame, and the top symmetry of support frame is provided with two sets of clamping devices, each set clamping device includes the connecting frame of sliding installation in support frame top and the clamping plate group of installation in connecting frame side and angle adjustable, two sets clamping plate group respectively sets up on the side wall of two angle irons, and the bottom of two angle irons contacts each other, the utility model discloses setting bottom plate below carbon dioxide gas shielded welding equipment, and setting up support frame in the end of bottom plate, and setting up clamping devices on the top symmetry of support frame, can install angle iron on clamping devices when welding treatment to angle iron, can limit the position of angle iron through clamping devices, and makes two angle irons steady contact, provides support for realizing its welding.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically a special machine for welding angle iron for refrigerators. Background Technology

[0002] In the modern home appliance manufacturing industry, refrigerators, as essential durable consumer goods, directly impact user experience and market competitiveness through their production quality and craftsmanship. In refrigerator manufacturing, angle iron, as a key supporting structural component, plays a decisive role in the overall stability and durability of the refrigerator due to its welding quality. A robust and precisely welded angle iron structure ensures that the refrigerator can withstand the weight of internal storage, the impact of frequent door opening and closing, and the vibrations during transportation, maintaining the integrity of the cabinet structure and preventing structural deformation from affecting cooling performance and lifespan.

[0003] Currently, most refrigerator manufacturers still heavily rely on manual welding for angle iron welding. Manual welding typically uses equipment such as CO2 gas shielded welding, a process widely used in the industry due to its flexibility and relatively low cost. The specific procedure involves manually assembling two angle irons to form the initial connection structure, followed by welding using CO2 gas shielded welding. CO2 gas shielded welding uses carbon dioxide gas as a protective medium to isolate the weld pool from harmful effects of oxygen and nitrogen in the air, while the high temperature generated by the electric arc melts the welding rod and the base angle iron, achieving a strong bond between them.

[0004] However, existing manual welding processes have significant drawbacks. Due to the lack of corresponding structures to constrain the position of angle irons, misalignment of adjacent angle irons is highly likely during welding. When manually assembling angle irons, it is difficult to ensure that the angle and position are completely consistent each time, introducing a degree of human error. Furthermore, the high temperature generated by the electric arc during welding causes localized heat deformation of the angle irons, and the forces applied during welding also cause displacement, further exacerbating the misalignment problem. Misalignment of angle irons not only affects the overall structural strength of the refrigerator, reducing product quality and reliability, but may also prevent subsequent assembly processes from proceeding smoothly, increasing scrap and rework rates, raising production costs, reducing production efficiency, and severely hindering the high-quality development of the refrigerator manufacturing industry. Utility Model Content

[0005] The purpose of this invention is to provide a special machine for welding angle irons for refrigerators, which aims to improve the problem of difficulty in ensuring the stable placement of adjacent angle irons when welding angle irons manually.

[0006] This utility model is implemented as follows: A special machine for welding angle irons for refrigerators includes a welding machine and a gas cylinder. Both the welding machine and the gas cylinder are supported on a base plate for moving their positions. A support frame is adjustable at the end of the base plate, and two sets of clamping devices are symmetrically arranged on the top of the support frame. Each set of clamping devices includes a connecting frame that is slidably installed on the top of the support frame and a clamping plate assembly that is installed on the side of the connecting frame and has an adjustable angle. The two sets of clamping plate assemblies are each sleeved on one side wall of two angle irons, and the bottoms of the two angle irons are in contact with each other.

[0007] As one embodiment of this utility model, the clamping plate assembly includes an upper clamping plate and a lower clamping plate distributed vertically. An adjusting screw and a vertically fixed vertical rod are provided at the end of the lower clamping plate. The vertical rod passes through a through hole in the upper clamping plate, and the adjusting screw is threaded through an internally threaded tube at the end of the upper clamping plate.

[0008] As one embodiment of this utility model, a sleeve is fixedly provided at the end of the lower clamping plate. The sleeve is sleeved on the end post, and multiple brake grooves are evenly distributed along the circumference of the side wall of the end post. The end of the brake bolt, which is threaded through the side wall of the sleeve, is inserted into a certain brake groove.

[0009] As one embodiment of this utility model, the connecting frame includes a frame and a sliding tube fixedly disposed inside the frame. A fastening bolt is threaded through the side wall of the sliding tube near the opening of the frame. The support frame includes a horizontal tube, and a strip groove is provided on both opposite side walls of the horizontal tube. The frame is sleeved on the horizontal tube, and the sliding tube is located inside the horizontal tube. At the same time, the fastening bolt is disposed through the strip groove.

[0010] In one embodiment of this utility model, the end post is vertically fixed on the side wall of the frame, and the end of the sleeve is fitted to the frame.

[0011] As one embodiment of this utility model, the support frame also includes two vertically arranged vertical tubes, two horizontally arranged bottom tubes, and two end tubes that are detachably installed at both ends of the two bottom tubes. The two vertical tubes are vertically installed at both ends above one of the end tubes, and a reinforcing tube is fixedly installed on the side of each vertical tube. A plug tube is fixedly installed below the horizontal tube, and the bottom of the plug tube is inserted into the vertical tube.

[0012] As one embodiment of this utility model, the top of the vertical pipe is configured with an inner square and an outer circle structure, and multiple top-opening dividing grooves are provided on the top of the side wall of the vertical pipe. At the same time, a clamp is fitted on the top of the vertical pipe, and the clamp squeezes the top of the vertical pipe to deform and press against the insertion pipe.

[0013] As one embodiment of this utility model, two limiting tubes are fixedly installed on the bottom surface of the base plate, and the two bottom tubes are respectively installed through the two limiting tubes and are fitted to the base plate.

[0014] As one embodiment of this utility model, insertion holes are provided on the side walls of the two limiting tubes that are close to each other, and a rubber column and two support plates respectively installed at the ends of the rubber column are provided between the two limiting tubes. Insertion posts are fixedly provided on the side of the two support plates that are far apart from each other. The insertion posts pass through the insertion holes and their ends are inserted into a slot of the bottom tube.

[0015] In one embodiment of this utility model, a pull ball is vertically arranged in the middle of the rubber column; a guide rod is fixedly arranged on the side wall where the two limiting tubes are close to each other, and the guide rod passes through the support plate.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model provides a base plate below the carbon dioxide gas shielded welding equipment, and a support frame at the end of the base plate. Clamping devices are symmetrically arranged on the top of the support frame. When welding angle iron, the angle iron can be installed on the clamping devices, which can restrict the position of the angle iron and make the two angle irons in stable contact, thus providing support for welding.

[0018] 2. The clamping device provided in this utility model includes a connecting frame and a clamping device movably installed on the side of the connecting frame. It can be convenient to adjust the tilt angle of the clamping device according to the needs, so that the two angle irons form a corresponding angle, which provides convenience for welding different frames. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model, making other features, objects, and characteristics of the utility model more apparent. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the base plate, support frame, and clamping device of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the base plate of this utility model;

[0023] Figure 4 This is a partial schematic diagram of the base plate of this utility model;

[0024] Figure 5 This is a structural schematic diagram of the support frame of this utility model;

[0025] Figure 6 This is a partial structural schematic diagram of the vertical tube of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the clamping device of this utility model;

[0027] Figure 8 This is a schematic diagram of the connecting frame of this utility model;

[0028] Figure 9 This is a schematic diagram of the structure of the clamping plate assembly of this utility model.

[0029] In the diagram: Welding machine 1; Baffle 11; Chain 12; Gas cylinder 2; Base plate 3; Caster wheel 31; Traveling wheel 32; Restriction tube 33; Insertion hole 331; Rubber column 34; Pull ball 35; End plate 36; Support plate 37; Insertion column 38; Guide rod 39; Support frame 4; Vertical pipe 41; Dividing groove 411; Clamp 412; Insertion pipe 42; Reinforcing pipe 43; Horizontal pipe 44; Strip groove 45; Bottom pipe 46; Slot 461; End pipe 47; Clamping device 5; Clamping plate assembly 51; Lower clamping plate 511; Upper clamping plate 512; Through hole 513; Internal threaded pipe 514; Adjusting screw 515; Sleeve 516; Brake bolt 517; Vertical rod 518; Connecting frame 52; Frame 521; Slide tube 522; Fastening bolt 523; End column 524; Brake groove 525. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] In order to restrict the position of the angle iron during the welding process, this embodiment provides a new welding device.

[0033] like Figure 1 , Figure 2 As shown, the welding equipment includes a carbon dioxide gas shielded welding device, a base plate 3, a support frame 4, and two sets of clamping devices 5.

[0034] like Figure 1As shown, the carbon dioxide gas shielded welding equipment includes at least a welding machine 1 and a gas cylinder 2. Both the welding machine 1 and the gas cylinder 2 are supported on a base plate 3. The base plate 3 is equipped with casters 32 at the front and 31 at the rear, respectively. This provides convenience for adjusting the positions of the welding machine 1 and the gas cylinder 2 as needed, while ensuring the base plate 3 stably supports them. Furthermore, a baffle 11 is provided at the end of the welding machine 1, and the gas cylinder 2 is positioned adjacent to the baffle 11, with its position relative to the welding machine 1 restricted by a chain 12.

[0035] The support frame 4 is installed at the end of the base plate 3 and can move along the length of the base plate 3. In addition, two sets of clamping devices 5 are respectively installed on the top of the support frame 4, and the telescopic and movable characteristics of the support frame 4 can be used to facilitate the adjustment of the position of the clamping devices 5, thereby providing support for clamping the angle iron to a certain height.

[0036] like Figure 7 As shown, each clamping device 5 includes a connecting frame 52 slidably mounted on the top of the support frame 4 and a clamping plate assembly 51 mounted on the side of the connecting frame 52 with an adjustable angle. Before clamping the angle iron, the clamping plate assembly 51 needs to be rotated around the axis to adjust the tilt angle of the clamping plate assembly 51 according to the requirements. After adjusting the state of the clamping plate assembly 51, one side wall of the two angle irons is inserted through the clamping plate assembly 51 and the bottoms of the two angle irons are in contact with each other, which makes it convenient for the operator to hold the welding torch of the carbon dioxide gas shielded welding equipment to complete the welding of the angle iron.

[0037] like Figure 9 As shown, to achieve the clamping of the angle iron, the clamping plate assembly 51 includes an upper clamping plate 512 and a lower clamping plate 511 distributed vertically. An adjusting screw 515 and a vertically fixed vertical rod 518 are provided at the end of the lower clamping plate 511. The vertical rod 518 passes through a through hole 513 in the upper clamping plate 512, and the adjusting screw 515 is threaded through an internally threaded tube 514 at the end of the upper clamping plate 512. The cooperation of the vertical rod 518 and the through hole 513 restricts the upper clamping plate 512 and the lower clamping plate 511 to be aligned and adjustable. By rotating the adjusting screw 515, the upper clamping plate 512 can be raised or lowered relative to the lower clamping plate 511, thereby adjusting the distance between the upper clamping plate 512 and the lower clamping plate 511. This distance is slightly larger than the thickness of the angle iron, making it easier for workers to insert the angle iron into the gap and ensuring stable placement of the angle iron with the cooperation of the upper clamping plate 512 and the lower clamping plate 511.

[0038] like Figure 8 , Figure 9As shown, in order to adjust the tilt angle of the clamping plate assembly 51 so that two adjacent angle irons form different included angles, a sleeve 516 is fixedly installed at the end of the lower clamping plate 511. The sleeve 516 is fitted onto the end post 524, realizing the movable connection between the lower clamping plate 511 and the end post 524. This allows the operator to easily control the clamping plate assembly 51 to rotate around the central axis of the end post 524 to adjust its tilt angle. Multiple braking grooves 525 are evenly distributed along the circumference of the side wall of the end post 524. The end of a braking bolt 517, threaded through the side wall of the sleeve 516, is inserted into one of the braking grooves 525. After adjusting the tilt angle of the clamping plate assembly 51, the sleeve 516 and the end post 524 are stably connected by the cooperation of the braking bolt 517 and the braking groove 525, providing support for adjusting the tilt angle of the clamping plate assembly 51 as needed.

[0039] like Figure 8 As shown, in order to ensure the stable installation of the end post 524, the connecting frame 52 includes a frame 521 and a sliding tube 522 fixedly disposed inside the frame 521. The frame 521 and the sliding tube 522 are respectively installed on the inner and outer sides of the horizontal tube 44 of the support frame 4. In addition, the end post 524 is vertically fixedly installed on the side wall of the frame 521, and the end of the sleeve 516 is fitted with the frame 521. With the cooperation of the frame 521 and the sliding tube 522, the end post 524 can be stably disposed on the side of the horizontal tube 44, thereby stably supporting the clamping plate assembly 51.

[0040] like Figure 5 , Figure 8 As shown, to stably install the frame 521 and the slide tube 522 on the horizontal tube 44, a fastening bolt 523 is threaded through the side wall of the slide tube 522 near the opening of the frame 521. A strip groove 45 is provided on each of the two opposite side walls of the horizontal tube 44, with the ends of the strip groove 45 being open. The frame 521 is fitted onto the outside of the horizontal tube 44, and the slide tube 522 is located inside the horizontal tube 44, enabling the connecting frame 52 to slide smoothly onto the horizontal tube 44, facilitating the adjustment of the position of the clamping plate assembly 51 as needed. Simultaneously, the fastening bolt 523 passes through the strip groove 45; therefore, after adjusting the position of the clamping plate assembly 51, rotating the fastening bolt 523 to press the horizontal tube 44 can achieve the braking effect of the connecting frame 52.

[0041] like Figure 5 As shown, in order to stably support the clamping device 5 under the action of the support frame 4, the support frame 4 also includes two vertically arranged vertical tubes 41, two horizontally arranged bottom tubes 46, and two end tubes 47 that are detachably installed at both ends of the two bottom tubes 46. The two vertical tubes 41 are vertically installed at both ends above one of the end tubes 47, and a reinforcing tube 43 is fixedly installed on the side of each vertical tube 41.

[0042] like Figure 5 , Figure 6As shown, the top of the vertical tube 41 is designed with an inner square and an outer circle structure, and multiple top-opening segmented grooves 411 are provided on the top of the side wall of the vertical tube 41. A clamp 412 is fitted onto the top of the vertical tube 41. A connector 42 is fixedly installed below the horizontal tube 44. The bottom of the connector 42 is inserted into the vertical tube 41. The clamp 412 compresses the top of the vertical tube 41, deforming it to press against the connector 42, thus achieving a stable connection between the horizontal tube 44 and the vertical tube 41. The state of the clamp 412 can be adjusted as needed to release the restriction between the connector 42 and the vertical tube 41, thereby adjusting the height of the horizontal tube 44 and achieving a preliminary adjustment of the position of the clamping device 5.

[0043] like Figure 2 , Figure 3 As shown, two limiting tubes 33 are fixedly installed on the bottom surface of the base plate 3, and two bottom tubes 46 are respectively installed through the two limiting tubes 33 to achieve a stable connection between the bottom tubes 46 and the base plate 3, and to provide support for controlling the movement of the bottom tubes 46 relative to the base plate 3 as needed.

[0044] like Figure 4 As shown, to ensure stable installation of the bottom tube 46 relative to the base plate 3 after adjustment, insertion holes 331 are provided on the side walls of the two limiting tubes 33 that are close to each other. A rubber post 34 and two support plates 37, respectively installed at the ends of the rubber post 34, are provided between the two limiting tubes 33. The support plates 37 are bolted to the end plates 36 at the ends of the rubber post 34. Insertion posts 38 are fixedly installed on the side of the two support plates 37 that are far apart from each other. The insertion posts 38 pass through the insertion holes 331 and their ends are inserted into a slot 461 of the bottom tube 46. The cooperation of the insertion posts 38, insertion holes 331, and slots 461 achieves braking of the bottom tube 46, thereby ensuring stable installation. When it is necessary to readjust the position of the bottom tube 46 and the clamping device 5, the rubber post 34 is pulled to deform it, which in turn moves the support plate 37, forcing the insertion post 38 to disengage from the slot 461, thus releasing the restriction on the bottom tube 46.

[0045] like Figure 4 As shown, to facilitate applying force to the rubber column 34, a pull ball 35 is vertically installed in the middle of the rubber column 34. The operator can hold the pull ball 35 to force the rubber column 34 to bend and deform. A guide rod 39 is fixedly installed on the side wall where the two limiting tubes 33 are close to each other. The guide rod 39 passes through the support plate 37 to restrict the movement of the support plate 37. Furthermore, a nut can be threaded onto the end of the guide rod 39 or a pin can be inserted through it to further limit the movement distance of the support plate 37.

[0046] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0047] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A special machine for welding angle iron for refrigerators, characterized in that, The assembly includes a welding machine (1) and a gas cylinder (2), both of which are supported on a base plate (3) for moving their positions. A support frame (4) is adjustable at the end of the base plate (3), and two sets of clamping devices (5) are symmetrically arranged on the top of the support frame (4). Each set of clamping devices (5) includes a connecting frame (52) slidably mounted on the top of the support frame (4) and a clamping plate assembly (51) mounted on the side of the connecting frame (52) with an adjustable angle. The two sets of clamping plate assemblies (51) are each sleeved on one side wall of two angle irons, and the bottoms of the two angle irons are in contact with each other.

2. The refrigerator angle iron welding machine according to claim 1, characterized in that, The clamping plate assembly (51) includes an upper clamping plate (512) and a lower clamping plate (511) distributed vertically. An adjusting screw (515) and a vertically fixed vertical rod (518) are provided at the end of the lower clamping plate (511). The vertical rod (518) is provided through a through hole (513) in the upper clamping plate (512), and the adjusting screw (515) is threaded through an internally threaded tube (514) at the end of the upper clamping plate (512).

3. A special machine for welding angle iron for refrigerators according to claim 2, characterized in that, A sleeve (516) is fixedly provided at the end of the lower clamping plate (511). The sleeve (516) is sleeved on the end post (524). Multiple brake grooves (525) are evenly distributed along the circumference of the side wall of the end post (524). The end of the brake bolt (517) threaded through the side wall of the sleeve (516) is inserted into a brake groove (525).

4. A special machine for welding angle iron for refrigerators according to claim 3, characterized in that, The connecting frame (52) includes a frame (521) and a sliding tube (522) fixedly disposed inside the frame (521). A fastening bolt (523) is threaded through the side wall of the sliding tube (522) near the opening of the frame (521). The support frame (4) includes a horizontal tube (44). A strip groove (45) is provided on both opposite side walls of the horizontal tube (44). The frame (521) is sleeved on the horizontal tube (44), and the sliding tube (522) is located inside the horizontal tube (44). The fastening bolt (523) is disposed through the strip groove (45).

5. A special machine for welding angle iron for refrigerators according to claim 4, characterized in that, The end post (524) is vertically fixed on the side wall of the frame (521), and the end of the sleeve (516) is fitted to the frame (521).

6. A special machine for welding angle iron for refrigerators according to claim 4, characterized in that, The support frame (4) also includes two vertically arranged vertical pipes (41), two horizontally arranged bottom pipes (46), and two end pipes (47) that are detachably installed at both ends of the two bottom pipes (46). The two vertical pipes (41) are vertically installed at both ends above one of the end pipes (47), and a reinforcing pipe (43) is fixedly installed on the side of each vertical pipe (41). A plug pipe (42) is fixedly installed below the horizontal pipe (44), and the bottom of the plug pipe (42) is inserted into the vertical pipe (41).

7. A special machine for welding angle iron for refrigerators according to claim 6, characterized in that, The top of the vertical tube (41) is configured as an inner square and outer circle structure, and multiple top-opening dividing grooves (411) are configured on the top of the side wall of the vertical tube (41). At the same time, a clamp (412) is fitted on the top of the vertical tube (41), and the clamp (412) squeezes the top of the vertical tube (41) to deform and press against the insertion pipe (42).

8. A special machine for welding angle iron for refrigerators according to claim 6, characterized in that, Two limiting tubes (33) are fixedly installed on the bottom surface of the base plate (3). The two bottom tubes (46) are respectively installed through the two limiting tubes (33) and are attached to the base plate (3).

9. A special machine for welding angle iron for refrigerators according to claim 8, characterized in that, Insertion holes (331) are provided on the sidewalls of the two limiting tubes (33) that are close to each other. A rubber post (34) and two support plates (37) installed at the ends of the rubber post (34) are provided between the two limiting tubes (33). Insertion posts (38) are fixedly provided on the side of the two support plates (37) that are far apart from each other. The insertion posts (38) are provided through the insertion holes (331) and their ends are inserted into a slot (461) of the bottom tube (46).

10. A special machine for welding angle iron for refrigerators according to claim 9, characterized in that, A pull ball (35) is vertically arranged in the middle of the rubber column (34); a guide rod (39) is fixedly arranged on the side wall where the two limiting tubes (33) are close to each other, and the guide rod (39) passes through the support plate (37).

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