Stud welding positioning equipment

Abstract

The utility model discloses stud welding positioning equipment which comprises a base, a positioning groove is formed in the base, a positioning hole is formed in the groove bottom wall of the positioning groove, and the positioning groove is used for positioning a base material; the lower portion of the base is movably connected with a stud carrying structure, the stud carrying structure can move between a first position and a second position, and when the stud carrying structure is located at the second position, a stud installed on the stud carrying structure coincides with the positioning hole and partially extends into the welding hole of the base material; and a welding gun is movably connected above the base. When welding is conducted, the base material with the welding hole is arranged on the positioning groove, then the stud carrying structure is located at the second position, the stud and the positioning hole are arranged in an overlapped mode, a part of the stud extends into the welding hole of the base material, then the stud and the welding hole can be welded from the upper portion through a welding gun, at the moment, the welding face is located above the positioning hole, and then welding is conducted. The thread structure of the stud is located below the positioning hole, splashing slag is not prone to being attached to the thread structure, and then the product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of welding structures, in particular to a stud welding positioning device. Background Art

[0002] Welding technology is a technology that forms a bond between separated metals or other thermoplastic materials at the atomic or molecular level through heating, pressure, or a combination of both. Welding is widely used in various industrial and manufacturing fields and is an important method for connecting metal parts. Stud welding, as a branch of welding technology, is mainly used to weld studs or similar fasteners to the surface of a base material and is widely used in electrical equipment (such as distribution cabinets) and household appliances (such as refrigerators).

[0003] Currently, to ensure the accuracy of stud welding, a welding fixture is usually set to position the base material, then the stud is positioned on the base material, and then the stud is welded to the base material by a welding torch. During the above welding process, the welding spatter generated is likely to adhere to the surface of the stud, resulting in the failure of the thread structure of the stud. Therefore, the welding fixture in the prior art is likely to cause the failure of the stud structure and affect the product quality. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a stud welding positioning device to solve the technical problem that the welding fixture in the prior art is likely to cause the failure of the stud structure.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A stud welding positioning device includes a base. A positioning groove is formed on the base, and a positioning hole is formed on the bottom wall of the positioning groove. The positioning groove is used to position the base material, and the positioning hole is used for the stud to pass through;

[0007] A stud feeding structure is movably connected below the base. The stud feeding structure can move between a first position and a second position. When the stud feeding structure is in the second position, the stud installed on the stud feeding structure coincides with the positioning hole and partially extends into the welding hole of the base material;

[0008] A welding torch is movably connected above the base. The welding torch is used to weld the stud and the welding hole.

[0009] Optionally, one end of the base is rotatably connected with a first rotating structure, and the first end of the first rotating structure is provided with the stud feeding structure, so that the stud feeding structure can move between the first position and the second position;

[0010] The other end of the base is rotatably connected with a second rotating structure, and the third end of the second rotating structure is provided with the welding torch.

[0011] Optionally, a telescopic cylinder is further provided outside the base. One end of the telescopic cylinder is rotatably connected to the second end of the first rotating structure, and the other end of the telescopic cylinder is rotatably connected to the fourth end of the second rotating structure.

[0012] Optionally, the stud advancing structure includes an advancing base installed on the first end, and the advancing base is provided with a guiding hole;

[0013] An electromagnet, a spring and a guiding block are sequentially connected to the bottom of the guiding hole. When the stud advancing structure is in the first position, the electromagnet is magnetically attracted to the guiding block, and the spring is compressed. When the stud advancing structure is in the second position, the electromagnet is powered off, and the spring resets.

[0014] Optionally, a plurality of limiting buckles are convexly provided on the inner wall of the guiding hole, and the limiting buckles are used to limit the stud in the guiding hole.

[0015] Optionally, a side groove is provided on the inner wall of the guiding hole, the limiting buckle is rotatably connected in the side groove, and a part of the limiting buckle extends out of the side groove and extends into the guiding hole.

[0016] Optionally, the limiting buckle is rotatably connected to the side groove through a torsion spring.

[0017] Optionally, a counterweight magnet block is provided at the end of the limiting buckle;

[0018] When the stud advancing structure is in the first position, the counterweight magnet block is magnetically repelled by the electromagnet, so that the limiting buckle partially extends out of the side groove and extends into the guiding hole;

[0019] When the stud advancing structure is in the second position, the counterweight magnet block resets, so that the limiting buckle does not extend into the guiding hole.

[0020] Compared with the prior art, the present utility model has the following beneficial effects:

[0021] When the stud welding positioning device provided by the present utility model is used for welding, first, a base material with a welding hole is arranged on the positioning groove, and then the stud advancing structure is in the second position, so that the stud coincides with the positioning hole and partially extends into the welding hole of the base material. Then, the stud and the welding hole can be welded from above by a welding torch. At this time, the welding surface is above the positioning hole, and the threaded structure of the stud is below the positioning hole, so that the splashed slag is not easily attached to the threaded structure, thereby ensuring the product quality. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0024] Figure 1 It is a schematic structural diagram of the stud welding positioning device provided by the present invention in the first state;

[0025] Figure 2 It is a schematic structural diagram of the stud welding positioning device provided by the present invention in the second state;

[0026] Figure 3 It is a top view structural diagram of the stud welding positioning device provided by the present invention;

[0027] Figure 4 It is a front view structural diagram of the stud welding positioning device provided by the present invention;

[0028] Figure 5 It is a partial sectional structural diagram of the stud welding positioning device provided by the present invention.

[0029] Illustration: 100, base; 101, positioning groove; 102, positioning hole;

[0030] 200, stud feeding structure; 201, first position; 202, second position; 210, feeding base; 211, guiding hole; 212, side groove; 220, electromagnet; 230, spring; 240, guiding block; 250, limiting buckle; 260, counterweight magnet;

[0031] 300, welding torch; 400, first rotating structure; 410, first end; 420, second end; 500, second rotating structure; 510, third end; 520, fourth end; 600, telescopic cylinder. Detailed implementation manners

[0032] In order to make the utility model purpose, features and advantages of the present utility model more obvious and understandable, the following will combine the drawings in the embodiments of the present utility model to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component set at the same time.

[0034] The following will further illustrate the technical solution of the present utility model in conjunction with the drawings and through specific embodiments.

[0035] As Figures 1 to 5 shown, Figure 1 FIG. 13 is a schematic structural view of the stud welding positioning device provided by the present utility model in the first state, Figure 2 FIG. 15 is a schematic structural view of the stud welding positioning device provided by the present utility model in the second state, Figure 3 FIG. 17 is a top view structural schematic diagram of the stud welding positioning device provided by the present utility model, Figure 4 FIG. 19 is a front view structural schematic diagram of the stud welding positioning device provided by the present utility model, Figure 5 FIG. 21 is a partial sectional structural schematic diagram of the stud welding positioning device provided by the present utility model.

[0036] The stud welding positioning device provided in this embodiment is applicable to the scenario of welding studs to a base material. The base material includes, but is not limited to, a power distribution cabinet housing, a household appliance housing, etc. In this embodiment, by improving the structure of the stud welding positioning device, parameters such as the stability, efficiency, and positioning accuracy of the stud welding technology are improved, thereby ultimately improving the welding quality.

[0037] As Figures 1 to 4As shown in the figure, the stud welding positioning device in this embodiment includes a base 100. A positioning groove 101 is provided on the base 100, and a positioning hole 102 is provided on the bottom wall of the positioning groove 101. The positioning groove 101 is used to position the base material (not shown in the figure), and the positioning hole 102 is used for the stud (not shown in the figure) to pass through. The stud includes a threaded portion and a positioning portion. The positioning portion is cylindrical and its size matches the welding hole of the base material. The threaded portion is a threaded groove opened on the bolt.

[0038] A stud feeding structure 200 is movably connected below the base 100, and the stud feeding structure 200 can move between a first position 201 and a second position 202. As Figure 1 shown, when the stud feeding structure 200 is located at the first position 201, the stud feeding structure 200 is arranged away from the base 100. At this time, the stud can be pre-installed in the stud feeding structure 200. As Figures 2 to 4 shown, when the stud feeding structure 200 is located at the second position 202, the stud installed on the stud feeding structure 200 coincides with the positioning hole 102 and partially extends into the welding hole of the base material, that is, the positioning portion of the stud can be sleeved with the welding hole. A welding gun 300 is movably connected above the base 100. The welding gun 300 is used to weld the stud and the welding hole. The welding gun 300 can be installed on the base 100 through a spherical joint. After the stud is connected to the welding hole, the operator can complete the welding action by operating the welding gun 300. The welding gun 300 can also be installed on the base 100 through a multi-degree-of-freedom robotic arm. After the stud is connected to the welding hole, the welding gun 300 can be operated through the multi-degree-of-freedom robotic arm to complete the welding action. The above-mentioned spherical joint and multi-degree-of-freedom robotic arm are common moving structures well-known to those skilled in the art and will not be specifically elaborated in this embodiment.

[0039] Specifically, when welding with the stud welding positioning device in this embodiment, first, the base material with a welding hole is placed on the positioning groove 101, and then the stud feeding structure 200 is located at the second position 202 so that the stud coincides with the positioning hole 102 and partially extends into the welding hole of the base material. Then, the stud and the welding hole can be welded from above by the welding gun 300. At this time, the welding surface is above the positioning hole 102, and the threaded structure of the stud is below the positioning hole 102. The splashed molten slag is not easily attached to the threaded structure, thereby ensuring the product quality.

[0040] Furthermore, one end of the base 100 is rotatably connected to a first rotating structure 400, and a stud feeding structure 200 is installed at the first end portion 410 of the first rotating structure 400, enabling the stud feeding structure 200 to move between a first position 201 and a second position 202; the other end portion of the base 100 is rotatably connected to a second rotating structure 500, and a welding torch 300 is installed at the third end portion 510 of the second rotating structure 500. Through the above settings, the welding efficiency is improved, facilitating the rapid positioning between the stud and the welding hole.

[0041] As a preferred embodiment, a telescopic cylinder 600 is further provided outside the base 100. One end portion of the telescopic cylinder 600 is rotatably connected to the second end portion 420 of the first rotating structure 400, and the other end portion of the telescopic cylinder 600 is rotatably connected to the fourth end portion 520 of the second rotating structure 500. It can be understood that by jointly controlling the rotation of the first rotating structure 400 and the second rotating structure 500 through the telescopic cylinder 600, it helps with the rapid positioning among the base 100, the stud feeding structure 200, and the welding torch 300, and the above settings make the overall structure more compact.

[0042] As other alternative embodiments, independent motors can be respectively installed on the base 100 corresponding to the first rotating structure 400 and the second rotating structure 500 to separately drive the corresponding rotating structures to rotate.

[0043] Based on the above embodiments, the stud feeding structure 200 includes a feeding base 210 installed on the first end portion 410. The feeding base 210 is provided with a guiding hole 211; an electromagnet 220, a spring 230, and a guiding block 240 are sequentially connected to the bottom of the guiding hole 211; when the stud feeding structure 200 is in the first position 201, the electromagnet 220 is magnetically attracted to the guiding block 240, and the spring 230 is compressed; when the stud feeding structure 200 is in the second position 202, the electromagnet 220 is powered off, and the spring 230 resets.

[0044] Specifically, when the stud feeding structure 200 is in the first position 201, the electromagnet 220 is powered on and magnetically attracted to the guiding block 240. At this time, the stud can be placed into the guiding hole 211; when the stud feeding structure 200 is in the second position 202, the electromagnet 220 is powered off, the spring 230 resets, releasing the guiding block 240, and pushing the positioning portion of the stud into the welding hole, realizing the rapid positioning of the stud, improving the automation degree of the stud welding positioning device, and reducing human error.

[0045] Furthermore, a plurality of limiting buckles 250 are protruded on the inner wall of the guiding hole 211, and the limiting buckles 250 are used to limit the stud in the guiding hole 211.

[0046] Further, side grooves 212 are formed in the hole wall of the guiding hole 211. The limiting buckle 250 is rotatably connected to the side grooves 212 and partially extends out of the side grooves 212 into the guiding hole 211. It can be understood that at this time, the limiting buckle 250 is equivalent to being movably connected to the side grooves 212. During the process of inserting the stud into the guiding hole 211, the stud can push the limiting buckle 250 into the side grooves 212 to realize the action of inserting the stud into the guiding hole 211. At the same time, after the stud is inserted into the guiding hole 211, the limiting buckle 250 resets, thereby restricting the removal of the stud from the guiding hole 211.

[0047] As an alternative embodiment, the limiting buckle 250 is rotatably connected to the side grooves 212 through a torsion spring. When the stud feeding structure 200 is in the first position 201 and the stud is inserted into the guiding hole 211, the stud overcomes the elastic force of the torsion spring and is placed on the guiding block 240 to realize the function of accommodating the stud in the guiding hole 211. When the stud feeding structure 200 is in the second position 202, the electromagnet 220 is powered off, the spring 230 resets, and the guiding block 240 is released. The guiding block 240 pushes the stud, and at this time, the stud reversely overcomes the elastic force of the torsion spring and extends out of the guiding hole 211, so that the guiding part of the stud is matched with the welding hole.

[0048] As another alternative embodiment, a counterweight magnet 260 is provided at the end of the limiting buckle 250. When the stud feeding structure 200 is in the first position 201, the counterweight magnet 260 is magnetically repelled by the electromagnet 220, so that the limiting buckle 250 partially extends out of the side grooves 212 into the guiding hole 211. When the stud feeding structure 200 is in the second position 202, the counterweight magnet 260 resets, so that the limiting buckle 250 does not extend into the guiding hole 211, which is convenient for the subsequent reset of the spring 230, the release of the guiding block 240, and the pushing of the positioning part of the stud into the welding hole, having the advantages of high stability, high release efficiency, and not being easily stuck.

[0049] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stud welding positioning device, characterized in that, It includes a base (100), a positioning groove (101) is provided on the base (100), a positioning hole (102) is provided on the bottom wall of the positioning groove (101), the positioning groove (101) is used for positioning the base material, and the positioning hole (102) is used for a stud to pass through; A stud advancing structure (200) is movably connected below the base (100), the stud advancing structure (200) can move between a first position (201) and a second position (202), when the stud advancing structure (200) is at the second position (202), the stud installed on the stud advancing structure (200) coincides with the positioning hole (102) and partially extends into the welding hole of the base material; A welding torch (300) is movably connected above the base (100), and the welding torch (300) is used for welding the stud and the welding hole.

2. The stud welding positioning device according to claim 1, characterized in that, One end of the base (100) is rotatably connected with a first rotating structure (400), and the stud advancing structure (200) is installed at the first end portion (410) of the first rotating structure (400), so that the stud advancing structure (200) can move between the first position (201) and the second position (202); The other end portion of the base (100) is rotatably connected with a second rotating structure (500), and the welding torch (300) is installed at the third end portion (510) of the second rotating structure (500).

3. The stud welding positioning device according to claim 2, characterized in that, An expansion cylinder (600) is further provided outside the base (100), one end portion of the expansion cylinder (600) is rotatably connected with the second end portion (420) of the first rotating structure (400), and the other end portion of the expansion cylinder (600) is rotatably connected with the fourth end portion (520) of the second rotating structure (500).

4. A stud welding positioning device according to claim 2, wherein, The stud advancing structure (200) includes an advancing base (210) installed on the first end portion (410), and a guiding hole (211) is provided in the advancing base (210); An electromagnet (220), a spring (230) and a guiding block (240) are sequentially connected to the bottom of the guiding hole (211); when the stud advancing structure (200) is at the first position (201), the electromagnet (220) and the guiding block (240) are magnetically attracted, and the spring (230) is compressed; when the stud advancing structure (200) is at the second position (202), the electromagnet (220) is powered off, and the spring (230) resets.

5. A stud welding positioning device according to claim 4, characterized in that, A plurality of limiting buckles (250) protrude from the hole wall of the guiding hole (211), and the limiting buckles (250) are used for limiting the stud in the guiding hole (211).

6. The stud welding positioning device according to claim 5, wherein, A side groove (212) is provided on the hole wall of the guiding hole (211), the limiting buckle (250) is rotatably connected in the side groove (212), and part of the limiting buckle (250) extends out of the side groove (212) and extends into the guiding hole (211).

7. The stud welding positioning device according to claim 6, wherein, The limiting buckle (250) is rotatably connected to the side groove (212) through a torsion spring.

8. A stud welding positioning device according to claim 6, characterized in that, A counterweight magnet (260) is provided at the end of the limit snap (250); When the stud advancement structure (200) is in the first position (201), the counterweight magnet (260) is magnetically repelled by the electromagnet (220), causing the limit snap (250) to partially extend out of the side groove (212) and into the guide hole (211); When the stud advancement structure (200) is in the second position (202), the counterweight magnet (260) resets, causing the limit snap (250) not to extend into the guide hole (211).

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