Spot welding device for splicing of home decoration stainless steel water pipes

Abstract

The utility model discloses a spot welding device for splicing home decoration stainless steel water pipes, and relates to the technical field of stainless steel pipe welding. The device comprises a fixed seat mechanism, a pliers mechanism and two connecting ribs, the fixing seat mechanism comprises a fixing seat, a positioning pin, four insulating sleeves, four tungsten needles, four locking screws and two argon pipes, the fixing seat is composed of an upper fixing seat and a lower fixing seat, the upper fixing seat and the lower fixing seat are symmetrically divided through the linear cutting technology, and the fixing seat is provided with a center hole, a positioning pin hole, insulating sleeve holes, an argon hole, an argon groove and other structures; the size precision and welding protection of water pipe splicing are ensured; the pliers mechanism drives an upper fixing seat and a lower fixing seat to be separated and combined through a pliers pin shaft, and fast clamping and loosening are achieved in cooperation with the rotary locking function of a pliers tail fixing frame. The four tungsten needles are evenly distributed and installed in the circumferential direction of the fixing base and externally connected with an argon arc welding machine, four-point automatic spot welding can be completed in sequence in cooperation with an argon protection system, welding points are even and firm, and splicing opening deformation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe welding and processing technology, and in particular to a spot welding device for splicing stainless steel water pipes in home decoration. Background Technology

[0002] With societal development, ordinary plastic water pipes for home decoration are gradually being replaced by stainless steel water pipes. However, existing spot welding processes for splicing stainless steel water pipes mostly rely on manual spot welding with a handheld single tungsten needle welding gun. This results in uneven spacing and molten areas between weld points, easily leading to uneven stress, weak connections, and deformation of the joints. These issues negatively impact subsequent circumferential welding and are also inefficient and costly. Therefore, it is necessary to design a spot welding device for splicing stainless steel water pipes in home decoration to fundamentally eliminate these defects and improve production efficiency. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a spot welding device for splicing stainless steel water pipes in home decoration. This device features a circular fixed base for precise positioning of the splice joints of two water pipes. Four tungsten needles are evenly distributed around the fixed base and connected to an external argon arc welding machine. Combined with an argon gas protection system, the device performs automatic spot welding sequentially, achieving uniform spot welding at four points. This solves the defects in spot welding mentioned in the background technology and improves production efficiency.

[0004] This utility model provides a spot welding device for splicing stainless steel water pipes in home decoration, including a fixed base mechanism, a clamp mechanism, and two connecting ribs. The fixed base mechanism includes a fixed base, a positioning pin, four insulating sleeves, four tungsten needles, four locking screws, and two argon gas tubes. The fixed base includes an upper fixed base and a lower fixed base. The clamp mechanism includes clamps and a clamp tail fixing frame. The clamps include a clamp pin, an upper handle, and a lower handle. The clamp tail fixing frame includes a frame pin, a frame, and knurled bolts. The two connecting ribs are simultaneously fixed to the fixed base and the clamps. The arc surface of the clamp end is also fixed to the arc surface of the fixed base, so that the fixed base mechanism and the clamp mechanism are integrated into the device of this utility model.

[0005] Furthermore, the fixing seat is provided with a central hole, a positioning pin hole, four circumferentially distributed insulating sleeve holes, two circumferentially symmetrical argon holes, four circularly distributed threaded holes and argon grooves. After the fixing seat and the pliers are fixed together by two connecting ribs, they are divided into symmetrical upper fixing seats and lower fixing seats by wire cutting along the symmetry line of the pliers.

[0006] Furthermore, the upper and lower fixed seats are fulcrumd by a clamping pin, and are opened and closed by operating the upper and lower handles.

[0007] Furthermore, the four tungsten needles are respectively interference-fitted into the four insulating sleeve holes by four insulating sleeves, and are fixed by four locking screws that cooperate with the four threaded holes respectively; the four tungsten needles are externally connected to an argon arc welding machine to achieve automatic spot welding of four points in sequence.

[0008] Furthermore, the two argon gas pipes are fixed to two argon gas holes and externally connected to an argon gas device; argon gas covers the spot welding area through the argon gas tank to protect the molten pool.

[0009] Furthermore, the lower end of the positioning pin is interference-fitted with the positioning pin hole of the lower fixed seat, and the upper end of the positioning pin is clearance-fitted with the positioning pin hole of the upper fixed seat to ensure the dimensional accuracy of the spliced ​​two water pipe ports.

[0010] Furthermore, the frame is connected to the end of the lower handle via a frame pin to achieve a rotation function; the knurled bolts engage with the threaded holes of the frame to achieve a locking function between the upper and lower handles; when the two water pipe ends to be spot welded are spliced ​​together and clamped in the center hole, the frame rotates to allow the end of the upper handle to enter the frame, and the knurled bolts are tightened to complete the clamping; after the spot welding is completed, the knurled bolts are loosened to allow the upper handle to disengage from the frame for unloading.

[0011] The advantages of this utility model compared with the prior art are:

[0012] 1. Four tungsten needles are evenly distributed around the circumference and automatically spot welded at four points in sequence to ensure a uniform molten zone at the weld point, avoid stress concentration and interface deformation, ensure a firm connection, and facilitate subsequent circumferential welding.

[0013] 2. Four-point welding can be completed in one clamping, increasing production efficiency by more than 30%. The device is also lightweight and adaptable to various working conditions such as water pipe laying on the ground, walls, and ceiling in home decoration.

[0014] 3. Through the design of argon gas tank and double argon gas pipe, the welding area is fully protected by argon gas, and the quality of the weld is significantly improved. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the open state of this utility model. In the figure: 1-connecting rib; 2-upper fixing seat; 3-lower fixing seat; 4-positioning pin; 5-insulating sleeve; 6-tungsten needle; 7-locking screw; 8-argon tube; 9-clamp pin; 10-upper handle; 11-lower handle; 12-frame pin; 13-frame; 14-knurled bolt.

[0016] Figure 2 This is a front view schematic diagram of the closed state structure of this utility model.

[0017] Figure 3The diagram shows the front and top views of the fixing base of this utility model. In the diagram: 101-center hole; 102-positioning pin hole; 103-insulating sleeve hole; 104-argon gas hole; 105-threaded hole; 106-argon gas groove. Detailed Implementation

[0018] The technical solutions of the present invention 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 invention, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "line of symmetry", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] See Figure 1 -- Figure 3 This utility model provides an embodiment of a spot welding device for splicing stainless steel water pipes in home decoration, comprising a fixed base mechanism, a pliers mechanism, and two connecting ribs 1; the fixed base mechanism includes a fixed base, a positioning pin 4, four insulating sleeves 5, four tungsten needles 6, four locking screws 7, and two argon gas tubes 8, the fixed base including an upper fixed base 2 and a lower fixed base 3; the pliers mechanism includes pliers and a pliers tail fixing frame, the pliers including a pliers pin shaft 9, an upper handle 10, and a lower handle 11, the pliers tail fixing frame including a frame pin shaft 12, a frame 13, and knurled bolts 14; the two connecting ribs 1 are simultaneously fixed to the fixed base and the pliers, and the arc surface of the pliers end is also fixed to the arc surface of the fixed base, so that the fixed base mechanism and the pliers mechanism are integrated to form the device of this utility model.

[0021] In one embodiment, the fixing seat is provided with a central hole 101, a positioning pin hole 102, four circumferentially distributed insulating sleeve holes 103, two circumferentially symmetrical argon holes 104, four circularly distributed threaded holes 105 and an argon groove 106. After the fixing seat and the pliers are fixed together by two connecting ribs 1, they are divided into symmetrical upper fixing seat 2 and lower fixing seat 3 by wire cutting along the symmetry line of the pliers.

[0022] In one embodiment, the upper fixed seat 2 and the lower fixed seat 3 are fulcrumd by the clamping pin 9, and are opened and closed by operating the upper handle 10 and the lower handle 11.

[0023] In one embodiment, the four tungsten needles 6 are respectively interference-fitted into the four insulating sleeve holes 103 by four insulating sleeves 5, and are fixed by four locking screws 7 respectively cooperating with the four threaded holes 105; the four tungsten needles 6 are externally connected to an argon arc welding machine to realize four-point sequential automatic spot welding.

[0024] In one embodiment, the two argon gas pipes 8 are fixed to two argon gas holes 104 and externally connected to an argon gas device; argon gas covers the spot welding area through the argon gas tank 106 to achieve molten pool protection.

[0025] In one embodiment, the lower end of the positioning pin 4 is interference-fitted with the positioning pin hole 102 of the lower fixed seat 3, and the upper end of the positioning pin 4 is clearance-fitted with the positioning pin hole 102 of the upper fixed seat 2 to ensure the dimensional accuracy of the spliced ​​two water pipe ports.

[0026] In one embodiment, the frame 13 is connected to the end of the lower handle 11 via a frame pin 12 to achieve a rotation function; the knurled bolt 14 engages with the threaded hole of the frame 13 to achieve a locking function between the upper handle 10 and the lower handle 11; when the two water pipe ports to be spot welded are spliced ​​together and clamped in the center hole 101, the frame 13 is rotated so that the end of the upper handle 10 enters the frame 13, and the knurled bolt 14 is tightened to complete the clamping; after the spot welding is completed, the knurled bolt 14 is loosened so that the upper handle 10 is disengaged from the frame 13 for unloading.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A spot welding device for splicing stainless steel water pipes in home decoration, characterized in that, The device includes a fixed base mechanism, a pliers mechanism, and two connecting ribs (1); the fixed base mechanism includes a fixed base, a positioning pin (4), four insulating sleeves (5), four tungsten needles (6), four locking screws (7), and two argon tubes (8), and the fixed base includes an upper fixed base (2) and a lower fixed base (3); the pliers mechanism includes pliers and a pliers tail fixing frame, the pliers include a pliers pin shaft (9), an upper handle (10), and a lower handle (11), and the pliers tail fixing frame includes a frame pin shaft (12), a frame (13), and a knurled bolt (14); the two connecting ribs (1) are simultaneously fixed to the fixed base and the pliers, and the arc surface of the pliers end is also fixed to the arc surface of the fixed base, so that the fixed base mechanism and the pliers mechanism are integrated to form the device of this utility model.

2. The spot welding device for splicing stainless steel water pipes according to claim 1, characterized in that, The fixing seat is provided with a central hole (101), a positioning pin hole (102), four circumferentially distributed insulating sleeve holes (103), two circumferentially symmetrical argon holes (104), four circularly distributed threaded holes (105) and an argon groove (106). After the fixing seat and the pliers are fixed together by two connecting ribs (1), they are divided into symmetrical upper fixing seat (2) and lower fixing seat (3) by wire cutting along the symmetry line of the pliers.

3. The spot welding device for splicing stainless steel water pipes according to claim 1, characterized in that, The upper fixed seat (2) and the lower fixed seat (3) are fulcrumd by the clamp pin (9), and can be opened and closed by operating the upper handle (10) and the lower handle (11).

4. The spot welding device for splicing stainless steel water pipes according to claim 1, characterized in that, The four tungsten needles (6) are respectively press-fitted into the four insulating sleeve holes (103) by four insulating sleeves (5), and are fixed by four locking screws (7) respectively cooperating with the four threaded holes (105); the four tungsten needles (6) are connected to an argon arc welding machine to realize automatic spot welding of four points in sequence.

5. The spot welding device for splicing stainless steel water pipes according to claim 1, characterized in that, The two argon tubes (8) are fixed to two argon holes (104) and externally connected to the argon device; argon gas covers the spot welding area through the argon tank (106) to achieve molten pool protection.

6. The spot welding device for splicing stainless steel water pipes according to claim 1, characterized in that, The lower end of the positioning pin (4) is interference-fitted with the positioning pin hole (102) of the lower fixed seat (3), and the upper end of the positioning pin (4) is clearance-fitted with the positioning pin hole (102) of the upper fixed seat (2) to ensure the dimensional accuracy of the spliced ​​two water pipe ports.

7. The spot welding device for splicing stainless steel water pipes according to claim 1, characterized in that, The frame (13) is connected to the end of the lower handle (11) via a frame pin (12) to achieve rotation. The knurled bolt (14) engages with the threaded hole of the frame (13) to achieve locking between the upper handle (10) and the lower handle (11). When the two water pipe ends to be spot welded are spliced ​​and clamped in the center hole (101), the frame (13) rotates to allow the end of the upper handle (10) to enter the frame (13), and the knurled bolt (14) is tightened to complete the clamping. After the spot welding is completed, the knurled bolt (14) is loosened to allow the upper handle (10) to disengage from the frame (13) for unloading.

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