Welding device with automatic wire feeding function

Abstract

The invention relates to the technical field of welding, and discloses an automatic wire feeding welding device which comprises a main body assembly and a shell, a mounting frame is arranged in the shell, a pressing wheel is arranged at the top of the mounting frame, a rotating shaft is arranged on one side of the mounting frame, a wire feeding wheel is arranged on the outer side of the rotating shaft in a sleeving mode, and a welding mechanism is arranged on one side of the shell. The auxiliary assembly is arranged on the wire feeding wheel and comprises an adjusting part, the adjusting part comprises moving rings, a movable groove is formed in the outer side of the wire feeding wheel, the moving rings are located in the movable groove, the number of the moving rings is two, and the two moving rings are located on the two sides of the interior of the movable groove respectively. The device has the beneficial effects that when welding wires of different specifications are used, the wire feeding wheel does not need to be detached and replaced, the device can adapt to the welding wires of different specifications only by adjusting the wire feeding wheel through the auxiliary assembly, and when the welding wires are replaced, the pressing wheel does not need to be released, so that operation steps can be reduced, and then the welding wire replacement efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a welding device with automatic wire feeding. Background Art

[0002] The automatic wire feeding welding device is a device that can automatically feed welding wire during the welding process to achieve efficient and stable welding operations. The common combination of an automatic wire feeder and a welding handle is that the welding handle can feed the welding wire through the automatic wire feeder during the welding process. The automatic wire feeder needs to drive the welding wire to move through the wire feeding wheel during the welding wire feeding process. The wire feeding wheel generally has multiple models, which means that when using welding wires of different specifications, the wire feeding wheel needs to be replaced. Replacing the wire feeding wheel requires a series of operations, such as disassembling relevant parts of the wire feeder, loosening the screws that fix the wire feeding wheel, removing the old wire feeding wheel, installing a new wire feeding wheel, and then retightening the screws and installing the parts. The whole process is relatively complicated, and even for skilled operators, it takes a certain amount of time to complete. In addition, during the process of replacing the welding wire, the pressure wheel needs to be released, which will further increase the time for replacing the welding wire, thereby affecting the welding efficiency. Summary of the invention

[0003] In view of the above problems existing in the existing automatic wire feeding welding device, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is that when using different welding wires, the wire feeding wheel needs to be replaced, which makes the operation more complicated.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic wire feeding welding device, comprising a main body assembly, including a shell, a mounting frame is arranged inside the shell, a pressure wheel is arranged on the top of the mounting frame, a rotating shaft is arranged on one side of the mounting frame, a wire feeding wheel is sleeved on the outer side of the rotating shaft, and a welding mechanism is arranged on one side of the shell; An auxiliary component is arranged on the wire feeding wheel, including an adjusting part, the adjusting part includes a movable ring, a movable groove is opened on the outer side of the wire feeding wheel, the movable ring is located in the movable groove, there are two movable rings, which are respectively located on both sides of the movable groove, a connecting block is fixed on the inner side of the movable ring, a groove is opened on the wire feeding wheel, the connecting block is located in the groove, a threaded column is rotatably connected in the wire feeding wheel, and the threaded column is connected to the inner thread of the connecting block.

[0006] As a preferred solution of the automatic wire feeding welding device described in the present invention, the auxiliary component also includes a positioning member, the positioning member includes a positioning plate, a chamber is opened on the wire feeding wheel, the positioning plate is located in the chamber, a fixing rod is fixed on the inner side of the positioning plate, a guide shaft is fixed on the end of the fixing rod, a rotating ring is arranged in the chamber, a guide groove is opened on the rotating ring, and the guide shaft slides in the guide groove.

[0007] As a preferred solution of the automatic wire feeding welding device described in the present invention, the auxiliary component also includes a pushing member, the pushing member includes a rotating column, one end of the rotating column is rotatably connected to the inner wall of the groove through a bearing, a push rod is fixed to the other end of the rotating column, a blocking column is fixed to one side of the rotating ring, a sliding groove is provided on the rotating column, a fixed shaft is fixed in the connecting block, the fixed shaft slides in the sliding groove, a first spiral groove is provided on the rotating column, and the first spiral groove is connected to the sliding groove.

[0008] As a preferred solution of the automatic wire feeding welding device described in the present invention, the auxiliary component also includes a rotating part, the rotating part includes a movable sleeve, the movable sleeve is located on one side of the wire feeding wheel, and is sleeved on the outside of the threaded column, a second spiral groove is opened on the threaded column, a positioning shaft is fixed in the movable sleeve, and the positioning shaft slides in the second spiral groove.

[0009] As a preferred solution of the automatic wire feeding welding device of the present invention, a fixed sleeve is fixed on one side of the wire feeding wheel, a limiting block is fixed on the inner side of the fixed sleeve, a limiting groove is provided on the movable sleeve, and the limiting block slides in the limiting groove.

[0010] As a preferred solution of the automatic wire feeding welding device described in the present invention, the auxiliary component also includes a moving part, the moving part includes a positioning wheel, the positioning wheel is fixed to one side of the moving sleeve, a connecting ring is clamped on the outer side of the positioning wheel, a connecting plate is fixed on one side of the connecting ring, a threaded rod is rotatably connected to one side of the mounting frame, and the threaded rod is connected to the inner thread of the connecting plate.

[0011] As a preferred solution of the automatic wire feeding welding device of the present invention, a positioning rod is fixed to one side of the mounting frame, the positioning rod is in contact with the bottom of the connecting plate, and a scale groove is formed on the positioning rod.

[0012] As a preferred solution of the automatic wire feeding welding device of the present invention, a positioning strip is fixed to the inner wall of the chamber, a positioning groove is provided on the positioning plate, and the positioning strip is slidably connected to the positioning groove.

[0013] As a preferred solution of the automatic wire feeding welding device of the present invention, there are four positioning plates, which are evenly distributed in the chamber in a ring shape, and the positioning plates are arc-shaped.

[0014] As a preferred solution of the automatic wire feeding welding device of the present invention, there are two blocking columns, which are respectively located on both sides of the push rod.

[0015] The beneficial effects of the present invention are as follows: when using welding wires of different specifications, there is no need to disassemble and replace the wire feeding wheel. The wire feeding wheel can be adapted to welding wires of different specifications by simply adjusting the wire feeding wheel through the auxiliary components. When replacing the welding wire, there is no need to release the pressure wheel, thereby reducing the operating steps and improving the efficiency of replacing the welding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 This is an overall diagram of a welding device with automatic wire feeding.

[0017] Figure 2 This is a structural diagram of the mounting frame of a welding device with automatic wire feeding.

[0018] Figure 3 The top view of the wire feeding wheel of the welding device with automatic wire feeding.

[0019] Figure 4 The cross-sectional structure diagram of the wire feeding wheel of the welding device with automatic wire feeding.

[0020] Figure 5 For welding devices with automatic wire feeding Figure 4 A partial enlarged structural diagram in the middle.

[0021] Figure 6 This is a structural diagram of the positioning parts of a welding device with automatic wire feeding.

[0022] Figure 7 This is a partial structural diagram of the rotating ring of a welding device with automatic wire feeding.

[0023] Figure 8 The structure diagram of the rotating column of the welding device with automatic wire feeding.

[0024] Fig. 9 This is a cross-sectional structural diagram from another perspective of the wire feeding wheel of a welding device with automatic wire feeding.

[0025] In the figure: 100, main assembly; 101, shell; 102, mounting frame; 103, pressure wheel; 104, rotating shaft; 105, wire feeding wheel; 106, welding mechanism; 200, auxiliary assembly; 201, adjustment member; 201a, moving ring; 105-1, movable groove; 201b, connecting block; 105-2, groove; 201c, threaded column; 202, positioning member; 202a, positioning plate; 105-3, chamber; 202b, fixing rod; 202c, guide shaft; 202d, rotating ring; 202d-1, guide groove; 203, pushing member; 203a, rotating Column; 203b, push rod; 203c, stop column; 203a-1, slide groove; 203d, fixed shaft; 203a-2, first spiral groove; 204, rotating part; 204a, movable sleeve; 201c-1, second spiral groove; 204b, positioning shaft; 204c, fixed sleeve; 204d, limit block; 204a-1, limit groove; 205, movable part; 205a, positioning wheel; 205b, connecting ring; 205c, connecting plate; 205d, threaded rod; 205e, positioning rod; 205e-1, scale groove; 202e, positioning bar; 202a-1, positioning groove. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1 Reference Figure 1-Figure 9 , is the first embodiment of the present invention, which provides an automatic wire feeding welding device, the automatic wire feeding welding device includes a main component 100, including a shell 101, a mounting frame 102 is arranged in the shell 101, a pressure wheel 103 is arranged on the top of the mounting frame 102, a rotating shaft 104 is arranged on one side of the mounting frame 102, a wire feeding wheel 105 is sleeved on the outer side of the rotating shaft 104, and a welding mechanism 106 is arranged on one side of the shell 101.

[0030] An installation roller is fixed in the shell 101 for installing and fixing the welding wire reel. A pressure adjustment handle is provided above the pressure wheel 103 for adjusting the pressure of the pressure wheel 103. The wire feeding wheel 105 is connected to the rotating shaft 104 through a clamping block. The rotating shaft 104 is used to drive the wire feeding wheel 105 to rotate, so that the wire feeding wheel 105 can transport the welding wire. The welding mechanism 106 is connected to the shell 101 through a connecting pipe.

[0031] There are two wire feeding wheels 105 , which are respectively located at two ends of one side of the mounting frame 102 .

[0032] The auxiliary component 200 is arranged on the wire feeding wheel 105, and includes an adjusting member 201. The adjusting member 201 includes a movable ring 201a. A movable groove 105-1 is opened on the outer side of the wire feeding wheel 105. The movable ring 201a is located in the movable groove 105-1. There are two movable rings 201a, which are respectively located on both sides of the movable groove 105-1. A connecting block 201b is fixed on the inner side of the movable ring 201a. A groove 105-2 is opened on the wire feeding wheel 105. The connecting block 201b is located in the groove 105-2. A threaded column 201c is rotatably connected in the wire feeding wheel 105, and the threaded column 201c is connected to the inner thread of the connecting block 201b.

[0033] There are four connecting blocks 201b, two of which are fixed in a group at the top and bottom of the inner side of a movable ring 201a respectively. The threads at both ends of the threaded column 201c are set in opposite directions, so that when the threaded column 201c rotates, the two connecting blocks 201b can move toward or away from each other on the outer side of the threaded column 201c, so that the movable ring 201a can be driven to move by the connecting blocks 201b. There are two threaded columns 201c, which are respectively located at the top and bottom of the wire feeding wheel 105, and one end of the two threaded columns 201c extends to the outside of the wire feeding wheel 105.

[0034] When the welding wire is installed, it will be located between the two movable rings 201a. The two movable rings 201a will guide and position the welding wire to avoid deviation of the welding wire during the transportation process.

[0035] When welding wires of different specifications are needed, it is only necessary to rotate the threaded column 201c to drive the connecting block 201b to move, and drive the movable ring 201a to move through the connecting block 201b, so that the distance between the two movable rings 201a can be changed, thereby being able to adapt to welding wires of different specifications. There is no need to replace the wire feeding wheel 105, thereby reducing the steps of replacing the welding wire and improving operating efficiency.

[0036] Example 2 Reference Figure 1-9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0037] Specifically, the auxiliary component 200 also includes a positioning member 202, and the positioning member 202 includes a positioning plate 202a. A chamber 105-3 is opened on the wire feeding wheel 105, and the positioning plate 202a is located in the chamber 105-3. A fixed rod 202b is fixed on the inner side of the positioning plate 202a, and a guide shaft 202c is fixed to the end of the fixed rod 202b. A rotating ring 202d is arranged in the chamber 105-3, and a guide groove 202d-1 is opened on the rotating ring 202d, and the guide shaft 202c slides in the guide groove 202d-1.

[0038] The guide groove 202d-1 is arc-shaped, and the chamber 105-3 is shielded by four positioning plates 202a to prevent the welding wire from falling into the chamber 105-3 during the feeding process. When the positioning plate 202a is in the maximum state, the ends are not in contact, so the positioning plate 202a can retract inward.

[0039] When the welding wire needs to be replaced, there is no need to disassemble the pressure wheel 103. Just rotate the rotating ring 202d. At this time, the guide shaft 202c will slide in the guide groove 202d-1. The cooperation of the two will drive the positioning plate 202a to move, so that the positioning plate 202a moves into the chamber 105-3, thereby making room for the welding wire to move. In this way, the welding wire can be passed between the pressure wheel 103 and the wire feeding wheel 105 without disassembling the pressure wheel 103. When installing the welding wire, it can also avoid the welding wire from being offset during the installation process.

[0040] When the welding wire is installed, the positioning plate 202a can be reset.

[0041] Specifically, the auxiliary component 200 also includes a pushing member 203, which includes a rotating column 203a, one end of which is rotatably connected to the inner wall of the groove 105-2 through a bearing, and a push rod 203b is fixed to the other end of the rotating column 203a, and a blocking column 203c is fixed to one side of the rotating ring 202d. A sliding groove 203a-1 is provided on the rotating column 203a, and a fixed shaft 203d is fixed in the connecting block 201b, and the fixed shaft 203d slides in the sliding groove 203a-1. A first spiral groove 203a-2 is provided on the rotating column 203a, and the first spiral groove 203a-2 is connected to the sliding groove 203a-1.

[0042] When the connecting block 201b drives the moving ring 201a to move within the specified adjustment range, the fixed shaft 203d will always move in the sliding groove 203a-1, thereby preventing the positioning plate 202a from moving when the moving ring 201a is adjusted normally.

[0043] When the welding wire needs to be replaced, the two movable rings 201a are moved to the end in the directions away from each other. At this time, the fixed shaft 203d will enter the first spiral groove 203a-2, and the cooperation of the two will drive the rotating column 203a and the push rod 203b to rotate, so that the push rod 203b squeezes the blocking column 203c, thereby pushing the rotating ring 202d to rotate, and then the positioning plate 202a can move into the chamber 105-3.

[0044] Specifically, the auxiliary component 200 also includes a rotating member 204, which includes a movable sleeve 204a. The movable sleeve 204a is located on one side of the wire feeding wheel 105 and is sleeved on the outside of the threaded column 201c. A second spiral groove 201c-1 is opened on the threaded column 201c. A positioning shaft 204b is fixed in the movable sleeve 204a, and the positioning shaft 204b slides in the second spiral groove 201c-1.

[0045] When the moving sleeve 204a moves, it will drive the positioning shaft 204b to move in the second spiral groove 201c-1. The cooperation between the two can drive the threaded column 201c to rotate, so that the threaded column 201c can drive the connecting block 201b to move.

[0046] Specifically, a fixed sleeve 204c is fixed on one side of the wire feeding wheel 105, a limiting block 204d is fixed inside the fixed sleeve 204c, a limiting groove 204a-1 is provided on the movable sleeve 204a, and the limiting block 204d slides in the limiting groove 204a-1.

[0047] The cooperation between the limiting block 204d and the limiting groove 204a-1 is used to limit the movable sleeve 204a, thereby preventing the movable sleeve 204a from rotating when moving.

[0048] Specifically, the auxiliary component 200 also includes a moving part 205, and the moving part 205 includes a positioning wheel 205a, the positioning wheel 205a is fixed to one side of the moving sleeve 204a, a connecting ring 205b is clamped on the outer side of the positioning wheel 205a, a connecting plate 205c is fixed to one side of the connecting ring 205b, and a threaded rod 205d is rotatably connected to one side of the mounting frame 102, and the threaded rod 205d is connected to the internal thread of the connecting plate 205c.

[0049] The positioning wheel 205a is in an I-shape and is movably connected to the connecting ring 205b. The connecting plate 205c is used to connect and fix the two connecting rings 205b. When the position of the movable ring 201a needs to be adjusted, the threaded rod 205d is rotated to drive the connecting plate 205c to move, and the connecting plate 205c drives the connecting ring 205b and the positioning wheel 205a to move, so that the positioning wheel 205a can drive the movable sleeve 204a to move, and the movable sleeve 204a drives the threaded column 201c to rotate.

[0050] Specifically, a positioning rod 205e is fixed to one side of the mounting frame 102, the positioning rod 205e is in contact with the bottom of the connecting plate 205c, and a scale groove 205e-1 is formed on the positioning rod 205e.

[0051] There are multiple scale grooves 205e-1, corresponding to welding wires of multiple specifications. The adjustment position of the connecting plate 205c is marked through the scale grooves 205e-1, so that the position of the movable ring 201a can be accurately adjusted.

[0052] Specifically, a positioning bar 202e is fixed to the inner wall of the chamber 105-3, a positioning groove 202a-1 is opened on the positioning plate 202a, and the positioning bar 202e is slidably connected to the positioning groove 202a-1.

[0053] The positioning strip 202e cooperates with the positioning groove 202a-1 to limit the positioning plate 202a, thereby preventing the positioning plate 202a from rotating when moving.

[0054] Specifically, there are four positioning plates 202a, which are evenly distributed in the chamber 105-3 in a ring shape, and the positioning plates 202a are arc-shaped.

[0055] The four positioning plates 202a are combined in a ring shape to completely shield the chamber 105-3.

[0056] Specifically, there are two blocking posts 203c, which are respectively located on both sides of the push rod 203b.

[0057] When in use, after the welding wire is installed, it will be located between the two movable rings 201a. The welding wire is guided and positioned by the two movable rings 201a to avoid the welding wire being offset during the welding wire transportation process. When welding wires of different specifications are needed, the threaded rod 205d is rotated to drive the connecting plate 205c to move, and the connecting plate 205c drives the connecting ring 205b and the positioning wheel 205a to move, so that the positioning wheel 205a can drive the movable sleeve 204a to move. When the movable sleeve 204a moves, it will drive the positioning shaft 204b to move in the second spiral groove 201c-1. The cooperation of the two can drive the threaded column 201c to rotate, so that the threaded column 201c can drive the connecting block 201b to move.

[0058] The connecting block 201b drives the movable ring 201a to move, so that the distance between the two movable rings 201a can be changed, so as to adapt to welding wires of different specifications. There is no need to replace the wire feeding wheel 105, thereby reducing the steps of replacing the welding wire and improving operating efficiency.

[0059] When the welding wire needs to be replaced, there is no need to disassemble the pressure wheel 103. The threaded rod 205d is rotated to make the two movable rings 201a move to the end in the direction away from each other. At this time, the fixed shaft 203d will enter the first spiral groove 203a-2, and the cooperation of the two will drive the rotating column 203a and the push rod 203b to rotate, so that the push rod 203b squeezes the blocking column 203c, thereby pushing the rotating ring 202d to rotate.

[0060] At this time, the guide shaft 202c will slide in the guide groove 202d-1, and the two will cooperate to drive the positioning plate 202a to move, so that the positioning plate 202a moves into the chamber 105-3, thereby making room for the welding wire to move. In this way, the welding wire can be passed between the pressure wheel 103 and the wire feeding wheel 105 without removing the pressure wheel 103, and when installing the welding wire, it can also avoid the welding wire from being offset during the installation process.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A welding device with automatic wire feeding, characterized in that: include, A main body component (100) comprises a shell (101), a mounting frame (102) is arranged inside the shell (101), a pressure wheel (103) is arranged on the top of the mounting frame (102), a rotating shaft (104) is arranged on one side of the mounting frame (102), a wire feeding wheel (105) is sleeved on the outer side of the rotating shaft (104), and a welding mechanism (106) is arranged on one side of the shell (101); The auxiliary component (200) is arranged on the wire feeding wheel (105), comprising an adjusting member (201), wherein the adjusting member (201) comprises a movable ring (201a), a movable groove (105-1) is provided on the outer side of the wire feeding wheel (105), the movable ring (201a) is located in the movable groove (105-1), there are two movable rings (201a), which are respectively located on two sides of the movable groove (105-1), a connecting block (201b) is fixed on the inner side of the movable ring (201a), a groove (105-2) is provided on the wire feeding wheel (105), the connecting block (201b) is located in the groove (105-2), a threaded column (201c) is rotatably connected in the wire feeding wheel (105), and the threaded column (201c) is connected to the inner thread of the connecting block (201b).

2. The automatic wire feeding welding device according to claim 1, characterized in that: The auxiliary component (200) further comprises a positioning member (202), wherein the positioning member (202) comprises a positioning plate (202a), a chamber (105-3) is provided on the wire feeding wheel (105), the positioning plate (202a) is located in the chamber (105-3), a fixing rod (202b) is fixed on the inner side of the positioning plate (202a), a guide shaft (202c) is fixed on the end of the fixing rod (202b), a rotating ring (202d) is provided in the chamber (105-3), a guide groove (202d-1) is provided on the rotating ring (202d), and the guide shaft (202c) slides in the guide groove (202d-1).

3. The automatic wire feeding welding device according to claim 2, characterized in that: The auxiliary component (200) further comprises a pushing member (203), wherein the pushing member (203) comprises a rotating column (203a), one end of the rotating column (203a) being rotatably connected to the inner wall of the groove (105-2) via a bearing, a push rod (203b) being fixed to the other end of the rotating column (203a), a blocking column (203c) being fixed to one side of the rotating ring (202d), a sliding groove (203a-1) being provided on the rotating column (203a), a fixed shaft (203d) being fixed in the connecting block (201b), the fixed shaft (203d) sliding in the sliding groove (203a-1), a first spiral groove (203a-2) being provided on the rotating column (203a), and the first spiral groove (203a-2) being connected to the sliding groove (203a-1).

4. The automatic wire feeding welding device according to claim 3, characterized in that: The auxiliary component (200) further comprises a rotating member (204), wherein the rotating member (204) comprises a movable sleeve (204a), wherein the movable sleeve (204a) is located on one side of the wire feeding wheel (105) and is sleeved on the outside of the threaded column (201c), wherein the threaded column (201c) is provided with a second spiral groove (201c-1), and a positioning shaft (204b) is fixed in the movable sleeve (204a), and the positioning shaft (204b) slides in the second spiral groove (201c-1).

5. The automatic wire feeding welding device according to claim 4, characterized in that: A fixed sleeve (204c) is fixed on one side of the wire feeding wheel (105), a limiting block (204d) is fixed inside the fixed sleeve (204c), a limiting groove (204a-1) is provided on the movable sleeve (204a), and the limiting block (204d) slides in the limiting groove (204a-1).

6. The automatic wire feeding welding device according to claim 4 or 5, characterized in that: The auxiliary component (200) further comprises a moving part (205), wherein the moving part (205) comprises a positioning wheel (205a), wherein the positioning wheel (205a) is fixed to one side of the moving sleeve (204a), a connecting ring (205b) is clamped on the outer side of the positioning wheel (205a), a connecting plate (205c) is fixed to one side of the connecting ring (205b), a threaded rod (205d) is rotatably connected to one side of the mounting frame (102), and the threaded rod (205d) is internally threadedly connected to the connecting plate (205c).

7. The automatic wire feeding welding device according to claim 6, characterized in that: A positioning rod (205e) is fixed to one side of the mounting frame (102), the positioning rod (205e) is in contact with the bottom of the connecting plate (205c), and a scale groove (205e-1) is provided on the positioning rod (205e).

8. The automatic wire feeding welding device according to claim 7, characterized in that: A positioning strip (202e) is fixed to the inner wall of the chamber (105-3), a positioning groove (202a-1) is provided on the positioning plate (202a), and the positioning strip (202e) is slidably connected to the positioning groove (202a-1).

9. The automatic wire feeding welding device according to claim 7 or 8, characterized in that: There are four positioning plates (202a) which are evenly distributed in the chamber (105-3) in a ring shape, and the positioning plates (202a) are arc-shaped.

10. The automatic wire feeding welding device according to claim 9, characterized in that: There are two blocking columns (203c), which are respectively located on both sides of the push rod (203b).

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