Welding device

Abstract

The present application relates to water purifier production technical field, especially relates to welding device, the welding device of the present application is used for welding the component being processed, the component being processed includes square tube spare and end cover spare, the end of square tube spare is square tube spare rim, end cover spare includes end cover spare rim, it includes positioning device and welding device, positioning device includes frame, inner lining spare and four clamping pieces, inner lining spare includes four inner lining beams and can be respectively with end cover spare rim abut, inner lining spare has lifting power, clamping piece respectively has horizontal movement power, inner lining beam respectively corresponds with clamping piece, the present application can ensure that inner lining spare inserts end cover spare end cover spare rim and makes end cover spare keep horizontal, can also ensure welding quality.

Description

Technical Field

[0001] This invention relates to the field of water purifier manufacturing technology, and in particular to welding equipment. Background Technology

[0002] The welding production of the processed components usually involves placing the end cap on the end of the square tube component, then hammering the end cap to make it embed into the end of the square tube component, fixing the square tube component, and then welding the edge of the end cap to the edge of the square tube component at the end of the square tube component using a welding device.

[0003] However, manually hammering the square tube component may cause the end cap to tilt relative to the end of the square tube component, or it may cause the end cap to be misaligned in height. Both situations will result in a height misalignment between the edge of the end cap and the edge of the square tube component. Furthermore, due to the elasticity of the material itself, gaps may also exist between the edge of the end cap and the edge of the square tube component. All of these factors will lead to a decrease in welding quality. Summary of the Invention

[0004] One object of the present invention is to solve or alleviate the above-mentioned technical problems.

[0005] The present invention employs a welding device for welding a processed component, the processed component including a square tube and an end cap, the end of the square tube being a square tube edge, and the end cap including an end cap edge; the device includes a positioning device and a welding device; the positioning device includes a frame, an inner liner and four clamping members, the inner liner including four inner liner beams that can respectively abut against the end cap edge; the inner liner having lifting power; the clamping members each having horizontal movement power, and the inner liner beams corresponding to the clamping members respectively.

[0006] The present invention achieves the following effects: it can ensure that the inner liner is inserted into the edge of the end cap and that the end cap remains horizontal; it can also ensure the quality of welding.

[0007] Further technical solutions also include a mounting plate and a lifting plate located below the mounting plate, the lifting plate having lifting power and facing the four clamping members.

[0008] This technical solution can facilitate the feeding of square tube components.

[0009] A further technical solution involves a linear power device fixedly mounted on the mounting plate. The linear power device is a motor, and its output end is fixedly connected to a lead screw that is threadedly connected to the lifting plate. The lifting plate is linearly slidably connected to the frame and / or mounting plate via a linear bearing.

[0010] A further technical solution involves a mounting plate with an insertion port, three of the four clamping members being fixed to the mounting plate, and a clearance structure on the mounting plate. The other of the four clamping members is positioned on the clearance structure, which allows the clearance structure to move the other of the four clamping members laterally, thus exposing the insertion port.

[0011] A further technical solution involves providing positioning protrusions on the lifting plate, which can fit against at least two side walls of the square tube component.

[0012] This technical solution can ensure the accurate positioning of the square tube component in the horizontal plane.

[0013] A further technical solution is that the positioning protrusion is U-shaped with an opening, and the positioning protrusion can fit against the three side walls of the square tube. The opening of the positioning protrusion and the insertion port are located on the same side.

[0014] This technical solution can facilitate the feeding and positioning of square tube parts while also improving production efficiency.

[0015] A further technical solution includes a liner component comprising a bending arm, a lifting device, and a liner component mounting portion. The lifting device is fixed on a mounting plate, and the liner component mounting portion is fixedly connected to the output end of the lifting device. One end of the bending arm is fixedly connected to the liner component mounting portion, and the other end of the bending arm is lower than one end of the bending arm and is fixedly connected to the liner beam.

[0016] This technical solution facilitates the insertion of the inner liner into the edge of the end cap.

[0017] A further technical solution involves setting a beam gap between two adjacent inner lining beams.

[0018] This technical solution ensures that the rear end cap of the inner liner is held on the inner liner when the inner liner is inserted into the end cap, facilitating operation. Attached Figure Description

[0019] Figure 1 This is a side view schematic diagram of a welding apparatus according to an embodiment of the present invention.

[0020] Figure 2 This is a top view schematic diagram of the welding apparatus according to an embodiment of the present invention.

[0021] Figure 3 This is a three-dimensional schematic diagram of positioning device 1.

[0022] Figure 4 This is a schematic diagram of DTL1 in detail one.

[0023] Figure 5 This is a three-dimensional schematic diagram of the component 9 being processed.

[0024] Figure 6This is a three-dimensional schematic diagram of end cap 92.

[0025] Figure 7 This is a schematic diagram of section SEC1.

[0026] Figure 8 This is a schematic diagram of section SEC2.

[0027] The accompanying drawings, which best illustrate the technical features of this invention, are Figure 4 .

[0028] Section 1 (SEC1); Section 2 (SEC2); Detail 1 (DTL1); Positioning device 1; Lifting plate 11; Positioning protrusion 111; Mounting plate 12; Inlet 121; Liner 13; Liner beam 131; Beam gap 132; Bending arm 133; Liner mounting part 134; Lifting device 139; Clamping part 14; Lateral movement device 149; Displacement structure 15; Displacement device 159; Frame 19; Linear power unit 191; Linear bearing 199; Welding device 8; Motion device 81; Workpiece component 9; Square tube 91; Square tube edge 911; End cap 92; End cap edge 921; Through hole 929. Detailed Implementation

[0029] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0030] As a specific embodiment, the welding apparatus of this invention is used to weld a workpiece 9, which includes a square tube 91 and an end cap 92. The end of the square tube 91 is a square tube edge 911, and the end cap 92 includes an end cap edge 921. It is readily understood that the top and / or bottom ends of the square tube 91 are the ends of the square tube 91; the cross-section of the inner cavity of the square tube 91 and the cross-section of the end cap 92 are both rectangular, allowing the square tube edge 911 and the end cap edge 921 to approximately fit together. A through hole 929 is provided in one of the end caps 92.

[0031] It includes a positioning device 1 and a welding device 8. It is easy to understand that the welding device 8 is an existing technology capable of welding, such as laser welding or arc welding. Driven by the motion device 81, it moves along a predetermined trajectory to perform welding, thereby welding the square tube edge 911 and the end cap edge 921 together to achieve a seal between them. The motion device 81 is an existing technology such as a multi-axis robot, or it can be an existing technology consisting of an X-axis electric cylinder, a Y-axis electric cylinder, and a Z-axis electric cylinder.

[0032] The positioning device 1 includes a frame 19, an inner liner 13, and four clamping members 14. The inner liner 13 includes four inner liner beams 131 that can respectively abut against the edge 921 of the end cap. It should be noted that, as... Figure 3As shown, although the clamping member 14 on the side of the inlet 121 described later consists of two parts, which are driven by two transverse moving devices 149 respectively, since both parts are used to cooperate with an inner lining beam 131, the two parts should be understood as one clamping member 14; in the case where three or more parts cooperate with an inner lining beam 131, the three or more parts should also be understood as one clamping member 14.

[0033] The inner lining 13 has a lifting power.

[0034] Each clamping member 14 has the power to move horizontally, and each inner lining beam 131 corresponds to a clamping member 14. In other words, after one clamping member 14 can be translated, it can clamp a portion of the square tube edge 911 and the end cap edge 921 between the two with its corresponding inner lining beam 131. After another clamping member 14 can be translated, it can clamp another portion of the square tube edge 911 and the end cap edge 921 between the two with its corresponding inner lining beam 131. The same applies to the other clamping members 14.

[0035] The working principle is as follows: Before use, the square tube 91 is placed on the frame 19, so that the square tube edge 911 of the square tube 91 is located between the four clamping members 14, and the end cap edge 921 is sleeved on the inner liner 13, so that the four inner liner beams 131 respectively abut against the end cap edge 921, so that the end cap edge 921 is held on the inner liner 13. Then, after the inner liner 13 is lowered, the four clamping members 14 respectively approach their corresponding four inner liners 13, so that the four sets of clamps... The holder 14 and the inner liner 13 respectively clamp the edge 921 of the end cap, thereby fixing the relative position between the square tube 91 and the end cap 92. During the process of the inner liner 13 descending to make the edge 911 of the square tube contact the edge 921 of the end cap, the edge 921 of the end cap is subject to the frictional force of the inner wall of the square tube edge 911 and tends to rise. This ensures that the inner liner 13 is inserted into the edge 921 of the end cap 92 and keeps the end cap 92 horizontal and does not tilt.

[0036] Next, the welding device 8 is activated, and it welds the square tube edge 911 and the end cap edge 921, which are clamped and fixed, along a roughly rectangular trajectory, thereby ensuring welding quality. Then, the inner liner 13 rises, pulling it out from the end cap edge 921. During this process, since the square tube edge 911 and the end cap edge 921 are already welded and fixed, and the square tube 91 is held and fixed by four clamping members 14, the rise of the inner liner 13 will not cause the end cap 92 to rise. Afterwards, the four sets of clamping members 14 move away from the end cap edge 921, removing the component 9 to be processed, thus completing the reset and allowing welding of the next component 9 to be processed.

[0037] As one specific implementation, it also includes a mounting plate 12 and a lifting plate 11 located below the mounting plate 12. The lifting plate 11 has lifting power and faces the four clamping members 14. In other words, all four clamping members 14 are in the state closest to the square tube member 91, and when viewed from above, the edges of the four clamping members 14 closest to the square tube member 91 are all located within the lifting plate 11. For example, the mounting plate 12 is fixedly equipped with a linear power device 191, which is a motor and its output end is fixedly connected to a lead screw threaded to the lifting plate 11. The lifting plate 11 is linearly slidably connected to the frame 19 and / or the mounting plate 12 through a linear bearing 199. Of course, the linear power device 191 can also be a cylinder, etc. The linear power device 191, which is a motor, drives the lead screw to rotate, so that the lifting plate 11 can be raised and lowered relative to the mounting plate 12. Before use, the square tube 91 is placed on the lifting plate 11. The lifting plate 11 rises so that the edge 911 of the square tube is aligned with the four clamping members 14 in the height direction. Welding can then be performed according to the aforementioned process. After welding is completed, the lifting plate 11 is lowered back to its original position. In this embodiment, the square tube 91 is not blocked by the four clamping members 14 when it is placed, which makes it easy to load the square tube 91.

[0038] As one specific implementation, the mounting plate 12 is provided with an inlet 121. Three of the four clamping members 14 are respectively fixed on the mounting plate 12. The mounting plate 12 is also provided with a clearance structure 15. The other of the four clamping members 14 is disposed on the clearance structure 15. The clearance structure 15 can drive the other of the four clamping members 14 to move laterally, so that the inlet 121 is exposed. For example, the clearance structure 15 includes a clearance device 159, which is a cylinder, and a lateral movement device 149, which is a cylinder, is disposed on the output end of the clearance device 159. When the clearance device 159 retracts, the inlet 121 is fully exposed. When the clearance device 159 extends, the other of the four clamping members 14 corresponds to the inner lining beam 131.

[0039] As one specific implementation, the lifting plate 11 is provided with positioning protrusions 111, which can abut against at least two side walls of the square tube 91. This implementation can ensure accurate positioning of the square tube 91 in the horizontal plane.

[0040] As one specific implementation, the positioning protrusion 111 is U-shaped with an opening. The positioning protrusion 111 can fit against the three side walls of the square tube 91, and the opening of the positioning protrusion 111 is located on the same side as the insertion port 121. After the retracting device 159 retracts to fully expose the insertion port 121, the square tube 91 is tilted so that the side of the bottom end of the square tube 91 opposite to the insertion port 121 fits against the positioning protrusion 111 (i.e., the side of the positioning protrusion 111 opposite to the opening). Then, the square tube 91 is rotated around the side of the bottom end of the square tube 91 opposite to the insertion port 121 so that the bottom end of the square tube 91 is horizontal and placed on the lifting plate 11. It is easy to understand that when viewed from the side, the square tube 91 is rectangular in shape. The diagonal from the top to the bottom of the rectangle is longer than the side length of the rectangle. Therefore, in the embodiment without the inlet 121, the distance between the lifting plate 11 and the mounting plate 12 must be relatively large to allow the square tube 91 to fit against the positioning protrusion 111 in the aforementioned inclined posture. In this embodiment, after the square tube 91 fits against the positioning protrusion 111 in the aforementioned inclined posture, it rotates until the bottom of the square tube 91 is horizontal. This facilitates the loading and positioning of the square tube 91. When the square tube 91 is loaded in the aforementioned inclined posture, the inlet 121 allows the top of the square tube 91 to pass through. Therefore, the distance between the lifting plate 11 and the mounting plate 12 can be smaller. Under the premise that the lifting speed of the lifting plate 11 is constant, the time spent by the lifting plate 11 in rising and falling is also less, thereby improving production efficiency.

[0041] As one specific embodiment, the inner liner 13 includes a bending arm 133, a lifting device 139, and an inner liner mounting part 134. The lifting device 139 is fixed on the mounting plate 12, and the inner liner mounting part 134 is fixedly connected to the output end of the lifting device 139. One end of the bending arm 133 is fixedly connected to the inner liner mounting part 134, and the other end of the bending arm 133 is lower than the first end of the bending arm 133 and is fixedly connected to the inner liner beam 131. This embodiment facilitates the insertion of the inner liner 13 into the end cap edge 921 of the end cap 92.

[0042] As one specific implementation, a beam gap 132 is provided between two adjacent inner lining beams 131. This implementation can improve the elasticity provided by the inner lining beams 131, thereby ensuring that the rear end cover 92 of the end cover edge 921 of the inner lining 13 inserted into the end cover 92 remains on the inner lining 13, facilitating operation.

[0043] The terms used in this invention, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are merely for distinction.

[0044] In this invention, terms such as "a," "an," etc., do not indicate a limitation on the quantity, but rather indicate the existence of at least one of the mentioned objects.

[0045] In this invention, terms indicating orientation or location such as top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.

[0046] Terms used in this invention, such as "approximately," "generally," "approximately," and "similar," are limiting terms used to indicate features that are present but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context; for example, for deviations in dimensions, the specific context may include, but is not limited to, relevant standards for dimensional tolerances.

Claims

1. A welding device for welding a work-processed component (9), the work-processed component (9) including a square tube (91) and an end cap (92), the end of the square tube (91) being a square tube edge (911), and the end cap (92) including an end cap edge (921); Its characteristics are, It includes a positioning device (1) and a welding device (8); the positioning device (1) includes a frame (19), an inner liner (13) and four clamping members (14), the inner liner (13) includes four inner liner beams (131) that can respectively abut against the edge (921) of the end cap; the inner liner (13) has lifting power; the clamping members (14) respectively have horizontal movement power, and the inner liner beams (131) respectively correspond to the clamping members (14).

2. The welding apparatus according to claim 1, characterized in that, It also includes a mounting plate (12) and a lifting plate (11) located below the mounting plate (12), the lifting plate (11) having lifting power and facing the four clamps (14).

3. The welding apparatus according to claim 2, characterized in that, The mounting plate (12) is fixedly equipped with a linear power device (191), which is a motor and its output end is fixedly connected to a lead screw that is threadedly connected to the lifting plate (11). The lifting plate (11) is linearly slidably connected to the frame (19) and / or the mounting plate (12) through a linear bearing (199).

4. The welding apparatus according to claim 2, characterized in that, The mounting plate (12) is provided with an insertion port (121). Three of the four clamping members (14) are fixed on the mounting plate (12). The mounting plate (12) is also provided with a clearance structure (15). The other of the four clamping members (14) is disposed on the clearance structure (15). The clearance structure (15) can drive the other of the four clamping members (14) to move laterally so that the insertion port (121) is exposed.

5. The welding apparatus according to claim 4, characterized in that, The lifting plate (11) is provided with a positioning protrusion (111), which can fit against at least two side walls of the square tube (91).

6. The welding apparatus according to claim 5, characterized in that, positioning... The protrusion (111) is U-shaped with an opening. The positioning protrusion (111) can fit against the three side walls of the square tube (91). The opening of the positioning protrusion (111) and the insertion port (121) are on the same side.

7. The welding apparatus according to claim 1, characterized in that, The inner lining (13) includes a bending arm (133), a lifting device (139), and an inner lining mounting part (134). The lifting device (139) is fixed on the mounting plate (12), and the inner lining mounting part (134) is fixedly connected to the output end of the lifting device (139). One end of the bending arm (133) is fixedly connected to the inner lining mounting part (134), and the other end of the bending arm (133) is lower than one end of the bending arm (133) and is fixedly connected to the inner lining beam (131).

8. The welding apparatus according to claim 7, characterized in that, A beam gap (132) is provided between two adjacent inner lining beams (131).

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