A welding apparatus for welding a nut on a screw

Abstract

The utility model belongs to welding technical field especially relates to a kind of welding equipment for welding nut on screw rod, including base and cover plate, the cover plate one end rotationally installed on base, and the other end is equipped with the welding port of the welding gun of convenient electric welding machine insertion;The position corresponding welding port on base is equipped with the positioning slot matched with nut, and the position different from welding port on base is equipped with the limiting mechanism for limiting cover plate;The length direction of positioning slot is same with the length direction of screw rod, and the position corresponding positioning slot on base is equipped with the limiting mechanism for positioning nut position.The welding equipment for welding nut on screw rod can be used for welding nut on screw rod, by using limiting mechanism to limit and fix nut, and using cover plate to compress and fix screw rod, then cooperating with welding gun to weld, not only is conducive to improving the efficiency of welding, but also can improve welding quality, ensure that welding point size is uniform.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, and in particular relates to a welding device for welding nuts onto screws. Background Technology

[0002] Traditional processes face significant challenges in current screw manufacturing. Existing screw products require nut installation and welding for fixation. The general production process consists of three main steps: manual deburring, nut tightening, and manual welding. Among these, manual welding has become a bottleneck restricting overall efficiency and quality. Manual welding is not only inefficient and produces welds of inconsistent sizes, but it also relies excessively on worker skill, resulting in inconsistent finished product quality and failing to meet customers' dual demands for precision and output. This problem urgently needs to be solved through technological innovation. Utility Model Content

[0003] In view of this, the present invention aims to provide a welding device for welding nuts onto screws, in order to solve the problems of poor welding efficiency and welding quality when manually welding nuts onto screw products.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A welding device for welding nuts onto a screw includes a base and a cover plate. One end of the cover plate is rotatably mounted on the base, and the other end has a welding port for easy insertion of a welding torch. The base has a positioning groove corresponding to the welding port for cooperating with the nut, and a limiting mechanism for limiting the cover plate is provided at a position different from the welding port. The length direction of the positioning groove is the same as the length direction of the screw, and a positioning mechanism for positioning the nut is provided at a position corresponding to the positioning groove on the base.

[0005] Furthermore, the positioning mechanism includes two positioning members spaced apart along the length of the screw. Each positioning member has a recessed portion at one end that extends into the positioning groove and can cooperate with the screw, while the other end is detachably mounted on the base.

[0006] Furthermore, the recessed portion has a flat surface at one end facing the cover plate for supporting the weld point between the screw and the nut.

[0007] Furthermore, the positioning component is mounted on the base by fixing screws, and the positioning component is provided with a strip-shaped hole that mates with the fixing screws. The length direction of the strip-shaped hole is the same as the length direction of the screw.

[0008] Furthermore, the limiting mechanism includes a magnetic block disposed on the base, and the cover plate is provided with a magnetic part that can cooperate with the magnetic block.

[0009] Furthermore, the magnetic block is provided with a beveled surface that can cooperate with the cover plate.

[0010] Furthermore, the cover plate is provided with a clamping element that cooperates with the screw.

[0011] Furthermore, the clamping member is provided with a groove that can cooperate with the screw.

[0012] Furthermore, a shielding cover is provided on the cover plate at the position corresponding to the welding joint.

[0013] Furthermore, the cover or shield is provided with a handle.

[0014] Compared with the prior art, the welding equipment for welding nuts onto screws described in this utility model has the following advantages: The present invention discloses a welding device for welding nuts onto screws. This device can be used to weld nuts onto screws by using a positioning mechanism to limit and fix the nut, and using a cover plate to press and fix the screw, and then using a welding torch for welding. This not only improves welding efficiency, but also improves welding quality and ensures uniform weld size. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. 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. In the drawings: Figure 1 This is a schematic diagram of the structure of a welding device for welding nuts onto a screw, as described in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a positioning component in a welding device for welding nuts onto a screw, as described in an embodiment of this utility model. Figure 3 This is a schematic diagram of the structure of the recessed part and the screw mating part in a welding device for welding nuts onto a screw, as described in an embodiment of this utility model. Figure 4 This is a schematic diagram of the structure of a welding device for welding nuts onto a screw, as described in an embodiment of the present invention, after a shielding cover is installed on the cover plate.

[0016] Explanation of reference numerals in the attached figures: 1. Base; 2. Cover plate; 3. Weld joint; 4. Magnetic block; 5. Magnetic part; 6. Clamping part; 7. Positioning groove; 8. Positioning part; 9. Recess; 10. Strip hole; 11. Fixing screw; 12. Welding gun; 13. Nut; 14. Screw; 15. Weld point; 16. Shielding cover; 17. Handle. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] 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.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] A welding device for welding nuts onto a screw, such as Figures 1 to 4 As shown, it includes a base 1 and a cover plate 2. One end of the cover plate 2 is rotatably mounted on the base 1, and the other end is provided with a welding port 3 for easy insertion of the welding torch 12 of the electric welding machine. The base 1 is provided with a positioning groove 7 corresponding to the welding port 3, which cooperates with the nut 13. The base 1 is provided with a limiting mechanism for limiting the cover plate 2 at a position different from the welding port 3. The length direction of the positioning groove 7 is the same as the length direction of the screw 14. The base 1 is provided with a positioning mechanism for positioning the nut 13 at the position corresponding to the positioning groove 7.

[0022] By setting a positioning groove 7 on the base 1, and using the positioning groove 7 in conjunction with the nut 13, not only can the nut 13 be limited to prevent it from rotating during welding, but the operator can also easily adjust the position of the nut 13 according to the position of the welding torch 12. The positioning mechanism can limit the adjusted nut 13 to ensure that the welding torch 12 can weld the connection between the nut 13 and the screw 14 during subsequent welding. In addition, after the operator places the screw 14 on the base 1, they can rotate the cover plate 2 and use the cover plate 2 to press and fix the screw 14, ensuring that the screw 14 remains stable during the welding process.

[0023] For example, when the nut 13 is hexagonal, the bottom surface of the positioning groove 7 is flat, and the side wall is an inclined surface that mates with the side of the nut 13. The base 1 can also be provided with a receiving groove (not shown in the figure) that mates with the screw 14. The receiving groove is connected to the positioning groove 7, and the bottom surface of the receiving groove is curved. When the screw 14 is placed on the base 1, it can remain stable under the constraint of the curved surface at the bottom of the receiving groove, and the nut 13 can also remain stable under the constraint of the positioning groove 7. At this time, the operator can rotate the cover plate 2 to press down the screw 14 and use the welding gun 12 of the welding machine to weld, which helps to improve the welding quality and welding accuracy. It should be noted that for other shapes of nuts 13, only a base 1 with a suitable-shaped positioning groove 7 needs to be selected, which will not be elaborated here.

[0024] Optionally, the cover plate 2 can be rotatably mounted on the base 1 by means of a rotating shaft or hinge. The welding machine can be an existing automatic or semi-automatic welding machine. By inserting the welding gun 12 of the welding machine into the welding port 3, the welding of the connection between the nut 13 and the screw 14 can be achieved. This utility model does not involve the improvement of the welding machine. Those skilled in the art can select a suitable welding machine according to actual needs, which will not be elaborated here.

[0025] In another optional embodiment, the welding torch 12 can be mounted and fixed on the cover plate 2 by the frame, so that the welding torch 12 can rotate with the cover plate 2. After the cover plate 2 is rotated open, the operator can easily pick up and put in the screw 14 product. When the cover plate 2 is rotated closed, the welding torch 12 can be directly aligned with the nut 13, thereby realizing the welding of the screw 14 product, which is beneficial to improving the welding efficiency of the screw 14 product.

[0026] Preferably, the limiting mechanism includes a magnetic block 4 mounted on the base 1, and a magnetic suction part 5 on the cover plate 2 that can cooperate with the magnetic block 4. The magnetic block 4 has an inclined surface that cooperates with the cover plate 2, and the magnetic block 4 can be installed and fixed to the base 1 by conventional methods such as screws. By utilizing the magnetic block 4 and providing an inclined surface, the magnetic block 4 can magnetically cooperate with the magnetic suction part 5 on the cover plate 2, thereby limiting and fixing the cover plate 2. This ensures the cover plate 2 remains stable during the welding process of the welding gun 12, further improving the clamping and fixing effect of the cover plate 2 on the screw 14, thus improving the welding accuracy and welding effect of the nut 13.

[0027] Preferably, the positioning mechanism includes two positioning elements 8 spaced apart along the length of the screw 14. Each positioning element 8 has a recessed portion 9 at one end extending into the positioning groove 7, which mates with the screw 14, and the other end is detachably mounted on the base 1. For example, the positioning elements 8 are mounted on the base 1 by fixing screws 11. Each positioning element 8 has a slotted hole 10 that mates with the fixing screw 11, and the length direction of the slotted hole 10 is the same as the length direction of the screw 14. It should be noted that multiple fixing screws 11 can be spaced apart on each positioning element 8 as needed, and corresponding slotted holes 10 are also provided for the fixing screws 11 to improve the stability of the positioning elements 8 on the base 1 and ensure that the two positioning elements 8 can always stably clamp and limit the nut 13.

[0028] In practical applications, the recessed portion 9 on the positioning element 8, in conjunction with the screw 14, can effectively limit the screw 14, ensuring stability at the connection between the screw 14 and the nut 13. The recessed portions 9 on the two positioning elements 8 can clamp and limit the nut 13, ensuring it does not move along the positioning groove 7 during welding. The operator can also adjust the position of the two positioning elements 8 by loosening the fixing screw 11 and moving the positioning element 8 along the slot 10. Afterwards, simply retightening the fixing screw 11 will re-fix the positioning elements 8. Adjusting the limiting position of the nut 13 by moving the positioning elements 8 allows the operator to adapt the positioning mechanism according to the position of the welding torch 12, making operation very simple.

[0029] To ensure the structural strength of the screw 14 and nut 13 after welding, existing products generally require two weld points 15 to be welded around the screw 14. At this time, the operator can manually or use an external drive device to rotate the screw 14 180 degrees and then use the welding gun 12 to weld the connection between the screw 14 and nut 13 again. However, in actual operation, the operator cannot easily determine the rotation angle of the screw 14, which can easily affect the welding quality and welding efficiency.

[0030] Therefore, in this embodiment, one end of the recessed portion 9 facing the cover plate 2 is provided with a flat surface for supporting the weld point 15 between the screw 14 and the nut 13, and the other end is fixed to the positioning member 8. By providing a flat surface at one end of the recessed portion 9, when the operator completes welding on one side of the screw 14 and rotates the screw 14 to align with the welding gun 12 on the other side, the flat surface of the recessed portion 9 can limit the rotation of the screw 14 by supporting the weld point 15, preventing the operator from rotating the screw 14 excessively. Combined with the limiting function of the positioning groove 7, the repositioning of the nut 13 after rotation can be completed quickly, thereby further improving welding efficiency.

[0031] Preferably, the cover plate 2 is provided with a clamping member 6 that mates with the screw 14. Exemplarily, the clamping member 6 can be installed and fixed to the cover plate 2 by conventional means such as screws, and the clamping member 6 is provided with a groove that mates with the screw 14. By using the clamping member 6 to clamp and fix the screw 14, and by using the groove on the clamping member 6 to limit the position of the screw 14, it is beneficial to further improve the stability of the screw 14 during the welding process and prevent the screw 14 from moving during welding.

[0032] Preferably, a shielding cover 16 is provided on the cover plate 2 at the position corresponding to the weld joint 3. For example, the shielding cover 16 can be installed and fixed to the cover plate 2 using conventional methods such as screws. In actual use, the shielding cover 16 can block the bright light and welding slag at the weld joint, which helps ensure the safety of the operator.

[0033] In practical applications, the cover plate 2 or the shield 16 is provided with a handle 17. For example, the handle 17 can be fixed to the cover plate 2 or the shield 16 by conventional means such as screws. By providing the handle 17, it is convenient for the operator to rotate the cover plate 2.

[0034] The present invention discloses a welding device for welding nuts onto screws. This device can be used to weld nuts onto screws by using a positioning mechanism to limit and fix the nut, and using a cover plate to press and fix the screw, and then using a welding torch for welding. This not only improves welding efficiency, but also improves welding quality and ensures uniform weld size.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding device for welding nuts onto a screw, characterized in that: The device includes a base (1) and a cover plate (2). One end of the cover plate (2) is rotatably mounted on the base (1), and the other end is provided with a welding port (3) for easy insertion of the welding gun (12) of the electric welding machine. The base (1) is provided with a positioning groove (7) corresponding to the welding port (3) that can cooperate with the nut (13). The base (1) is provided with a limiting mechanism for limiting the cover plate (2) at a position different from the welding port (3). The length direction of the positioning groove (7) is the same as the length direction of the screw (14). The base (1) is provided with a positioning mechanism for positioning the nut (13) at a position corresponding to the positioning groove (7).

2. The welding equipment for welding nuts onto a screw according to claim 1, characterized in that: The positioning mechanism includes two positioning elements (8) spaced apart along the length of the screw (14). Each positioning element (8) has a recess (9) at one end that extends into the positioning groove (7) and can cooperate with the screw (14). The other end is detachably mounted on the base (1).

3. The welding equipment for welding nuts onto a screw according to claim 2, characterized in that: The recess (9) has a flat surface at one end facing the cover plate (2) that can hold the welded joint between the screw (14) and the nut (13).

4. A welding device for welding nuts onto a screw according to claim 2 or 3, characterized in that: The positioning component (8) is mounted on the base (1) by a fixing screw (11). The positioning component (8) is provided with a strip hole (10) that cooperates with the fixing screw (11). The length direction of the strip hole (10) is the same as the length direction of the screw (14).

5. A welding device for welding nuts onto a screw according to claim 1, characterized in that: The limiting mechanism includes a magnetic block (4) provided on the base (1) and a magnetic part (5) provided on the cover plate (2) that can cooperate with the magnetic block (4).

6. A welding device for welding nuts onto a screw according to claim 5, characterized in that: The magnetic block (4) has a beveled part that can cooperate with the cover plate (2).

7. A welding apparatus for welding nuts onto a screw according to claim 5 or 6, characterized in that: The cover plate (2) is provided with a clamping element (6) that cooperates with the screw (14).

8. A welding device for welding nuts onto a screw according to claim 7, characterized in that: The clamping member (6) is provided with a groove that can cooperate with the screw (14).

9. A welding device for welding nuts onto a screw according to claim 1, characterized in that: The cover plate (2) is provided with a shield (16) at the position corresponding to the welding joint (3).

10. A welding device for welding nuts onto a screw according to claim 9, characterized in that: The cover plate (2) or shield (16) is provided with a handle (17).

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