Output conversion mechanism of handheld welding machine and handheld welding machine

Abstract

The utility model provides an output switching mechanism of a handheld welding machine and the handheld welding machine, and the output switching mechanism comprises a conductive bolt which is connected with a circuit board assembly through a cable and comprises a bolt head and a first screw rod; the welding rod clamping piece comprises a second screw rod and a plurality of elastic arms arranged at one end of the second screw rod, a first threaded hole in threaded connection with the first screw rod is formed in the second screw rod, and a clamping groove used for clamping a welding rod is formed among the elastic arms; the quick-plug connector female end is provided with a second threaded hole which is in threaded connection with the first screw rod, and the quick-plug connector female end is used for being connected with a quick-plug connector male end of the welding handle wire in a matched and inserted mode; the output conversion mechanism has a first working state and a second working state, and in the first working state, the welding rod clamping piece is connected with the conductive bolt; and in the second working state, the quick-plug connector female end is connected with the conductive bolt, so that hand holding is not needed, more labor is saved, and a user can flexibly select according to actual requirements.

Description

Technical Field

[0001] This utility model relates to the field of welding machine technology, specifically to an output conversion mechanism for a handheld welding machine and a handheld welding machine. Background Technology

[0002] Welding machines use the high-temperature electric arc generated when the positive and negative electrodes are short-circuited momentarily to melt the solder on the welding rod and the material being welded, thus bonding the objects together.

[0003] Existing handheld welding machines include a welding torch and a clamping connector located at the front of the torch for securing the welding rod. The clamping connector has a socket for inserting the welding rod, and its side wall has a knob that can be inserted into the socket to press and secure the welding rod onto the clamping connector. Handheld welding machines are convenient for long-distance operation, but because they require holding the torch, they are relatively strenuous. In some welding situations, it is necessary to fix the welding rod in a suitable position to save physical effort. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the existing handheld welding machine, which is relatively laborious, and thus provide an output conversion mechanism and a handheld welding machine that saves labor.

[0005] Therefore, this utility model provides an output conversion mechanism for a handheld welding machine, including a conductive bolt, a welding electrode holder, and a quick-connect female end. The conductive bolt is connected to a circuit board assembly via a cable, and the conductive bolt includes a bolt head and a first screw. The welding electrode holder includes a second screw and a plurality of elastic arms disposed at one end of the second screw. The second screw has a first threaded hole that is threadedly connected to the first screw, and the plurality of elastic arms form a clamping groove for holding the welding electrode. The quick-connect female end has a second threaded hole that is threadedly connected to the first screw, and the quick-connect female end is used to mate with the quick-connect male end of the welding cable. The output conversion mechanism has a first working state and a second working state, wherein, in the first working state, the welding electrode holder is connected to the conductive bolt; and in the second working state, the quick-connect female end is connected to the conductive bolt.

[0006] It also includes a screw cap, the rear end of which is formed with a third threaded hole that is threadedly connected to the second screw, and the front end of which is formed with a flared mouth, the diameter of which gradually increases from the front end of the screw cap to the rear end.

[0007] It also includes a clamping washer that is threadedly connected to the first screw, the clamping washer engaging with the bolt head to clamp the end of the cable.

[0008] This utility model also provides a handheld welding machine, including a gun body and an output conversion mechanism of the handheld welding machine as described above, which is installed at the front end of the gun body.

[0009] The circuit board assembly includes a first circuit board and a second circuit board arranged vertically, and the first circuit board and the second circuit board are connected by pin headers or wires.

[0010] The gun body is equipped with a fan, a circuit board assembly, and a transformer in sequence from its rear end to its front end.

[0011] Both the first circuit board and the second circuit board are provided with a heat dissipation channel located in the middle, and multiple electronic components distributed on both sides of the heat dissipation channel. The fan is installed at one end of the heat dissipation channel and the transformer is installed at the other end.

[0012] The technical solution of this utility model has the following advantages:

[0013] 1. The output conversion mechanism of the handheld welding machine provided by this utility model includes a conductive bolt, a welding rod clamping component, and a quick-connect female end. The output conversion mechanism has a first working state and a second working state. In the first working state, the welding rod clamping component is connected to the conductive bolt, thereby clamping the welding rod. In the second working state, the quick-connect female end is connected to the conductive bolt, so that the quick-connect male end of the welding cable can be connected to the quick-connect female end. The welding clamp at the end of the welding cable can be used to clamp the welding rod, thus eliminating the need for handheld operation and saving more effort. This allows users to flexibly choose according to their actual needs.

[0014] 2. The output conversion mechanism of the handheld welding machine provided by this utility model has a third threaded hole formed at the rear end of the nut that is threaded to the second screw, and a flared mouth formed at the front end. The diameter of the flared mouth gradually increases from the front end to the rear end of the nut. When the nut is tightened, multiple elastic elements clamp the welding rod more tightly due to the reduced diameter of the flared mouth, making it convenient to use.

[0015] 3. The output conversion mechanism of the handheld welding machine provided by this utility model has a heat dissipation channel located in the middle of the first circuit board and the second circuit board, as well as multiple electronic components distributed on both sides of the heat dissipation channel. A fan is installed at one end of the heat dissipation channel and a transformer is installed at the other end, which is more conducive to heat dissipation of electronic components. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the handheld welding machine of this utility model;

[0018] Figure 2 A perspective view of the first embodiment of the output conversion mechanism;

[0019] Figure 3 for Figure 2 An enlarged structural diagram;

[0020] Figure 4 This is a cross-sectional view of the swivel cap;

[0021] Figure 5 A first perspective view of a second embodiment of the output conversion mechanism;

[0022] Figure 6 A second perspective view of a second embodiment of the output conversion mechanism;

[0023] Figure 7 This is a side view of the circuit board assembly.

[0024] Explanation of reference numerals in the attached drawings: 1. Conductive bolt; 2. Circuit board assembly; 3. Bolt head; 4. First screw; 5. Welding electrode holder; 6. Second screw; 7. Elastic arm; 8. First threaded hole; 9. Quick-connect female end; 10. Second threaded hole; 11. Screw cap; 12. Third threaded hole; 13. Flared mouth; 14. Pressure washer; 15. Gun body; 16. First circuit board; 17. Second circuit board; 18. Fan; 19. Transformer; 20. Heat dissipation channel; 21. Electronic component. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] Example

[0030] This embodiment provides a handheld welding machine, such as Figure 1 As shown, it includes a gun body 15, a fan 18, a circuit board assembly 2, a transformer 19, and an output conversion mechanism.

[0031] The output conversion mechanism is located at the front end of the gun body 15, such as... Figure 2 and Figure 5 As shown, it includes a conductive bolt 1, a welding electrode holder 5, a quick-connect female end 9, a clamping washer 14, and a rotating cap 11. The output conversion mechanism has a first working state and a second working state, wherein, in the first working state, the welding electrode holder 5 is connected to the conductive bolt 1; and in the second working state, the quick-connect female end 9 is connected to the conductive bolt 1.

[0032] Conductive bolt 1 is connected to circuit board assembly 2 via a cable, such as... Figure 2 , Figure 3 and Figure 4 As shown, the conductive bolt 1 includes a bolt head 3 and a first screw 4. It also includes a clamping washer 14 that is threadedly connected to the first screw 4. The clamping washer 14 cooperates with the bolt head 3 to clamp the end of the cable.

[0033] The electrode holder 5 includes a second screw 6 and a plurality of elastic arms 7 disposed at one end of the second screw 6. The second screw 6 is formed with a first threaded hole 8 that is threadedly connected to the first screw 4. A clamping groove for holding the electrode is formed between the plurality of elastic arms 7.

[0034] like Figure 5 and Figure 6As shown, the female end 9 of the quick-connect connector is provided with a second threaded hole 10 that is threadedly connected to the first screw 4. The female end 9 of the quick-connect connector is used to mate with the male end of the quick-connect connector of the welding cable. It should be noted that the female end and male end of the quick-connect connector of the welding cable are existing mature technologies, so their specific structure and working principle will not be described in detail.

[0035] The cap 11 has a third threaded hole 12 formed at its rear end, which is threaded to the second screw 6, and a flared mouth 13 formed at its front end. The diameter of the flared mouth 13 gradually increases from the front end to the rear end of the cap 11.

[0036] like Figure 7 As shown, the circuit board assembly 2 includes a first circuit board 16 and a second circuit board 17 arranged vertically, and the first circuit board 16 and the second circuit board 17 are connected by pin headers or wires. Figure 1 As shown, the gun body 15 is provided with a fan 18, a circuit board assembly 2 and a transformer 19 in sequence from its rear end to its front end. The first circuit board 16 and the second circuit board 17 are both provided with a heat dissipation channel 20 located in the middle, and a plurality of electronic components 21 distributed on both sides of the heat dissipation channel 20. The fan 18 is installed at one end of the heat dissipation channel 20 and the transformer 19 is installed at the other end.

[0037] The output conversion mechanism of the handheld welding machine provided by this utility model includes a conductive bolt 1, a welding rod clamping member 5, and a quick-connect female end 9. The output conversion mechanism has a first working state and a second working state. In the first working state, the welding rod clamping member 5 is connected to the conductive bolt 1, so that the welding rod can be clamped. In the second working state, the quick-connect female end 9 is connected to the conductive bolt 1, so that the quick-connect male end of the welding cable can be connected to the quick-connect female end. The welding clamp at the end of the welding cable can be used to clamp the welding rod, so that it does not need to be held by hand, which is more labor-saving. This allows users to flexibly choose according to their actual needs.

[0038] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An output conversion mechanism for a handheld welding machine, characterized in that, include: A conductive bolt (1) is connected to a circuit board assembly (2) via a cable. The conductive bolt (1) includes a bolt head (3) and a first screw (4). The electrode holder (5) includes a second screw (6) and a plurality of elastic arms (7) disposed at one end of the second screw (6). The second screw (6) is formed with a first threaded hole (8) that is threadedly connected to the first screw (4). A clamping groove for holding the electrode is formed between the plurality of elastic arms (7). The quick-connect female end (9) is provided with a second threaded hole (10) that is threaded to the first screw (4). The quick-connect female end (9) is used to be inserted into the quick-connect male end of the welding cable. The output conversion mechanism has a first working state and a second working state. In the first working state, the welding rod holder (5) is connected to the conductive bolt (1); in the second working state, the quick-connect female end (9) is connected to the conductive bolt (1).

2. The output conversion mechanism of the handheld welding machine according to claim 1, characterized in that, It also includes a screw cap (11), the rear end of which is formed with a third threaded hole (12) that is threadedly connected to the second screw (6), and the front end is formed with a flared mouth (13), the diameter of which gradually increases from the front end to the rear end of the screw cap (11).

3. The output conversion mechanism of the handheld welding machine according to claim 1, characterized in that, It also includes a clamping washer (14) threadedly connected to the first screw (4), the clamping washer (14) cooperating with the bolt head (3) to clamp the end of the cable.

4. A handheld welding machine, characterized in that, It includes a gun body (15) and an output conversion mechanism for a handheld welding machine as described in any one of claims 1-3, which is mounted on the front end of the gun body (15).

5. The handheld welding machine according to claim 4, characterized in that, The circuit board assembly (2) includes a first circuit board (16) and a second circuit board (17) arranged vertically, and the first circuit board (16) and the second circuit board (17) are connected by pin headers or wires.

6. The handheld welding machine according to claim 5, characterized in that, The gun body (15) is provided with a fan (18), a circuit board assembly (2) and a transformer (19) in sequence from its rear end to its front end.

7. The handheld welding machine according to claim 6, characterized in that, Both the first circuit board (16) and the second circuit board (17) are provided with a heat dissipation channel (20) located in the middle, and a plurality of electronic components (21) distributed on both sides of the heat dissipation channel (20). The fan (18) is installed at one end of the heat dissipation channel (20), and the transformer (19) is installed at the other end.

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