A welding gun connection device

Abstract

The utility model discloses a kind of welding torch connecting devices, it is related to welding equipment technical field, including connecting seat and joint body, further include: female head pipe, one end is fixedly connected with the connecting seat;Male head pipe, one end is fixedly connected with the joint body, and the other end is inserted with the inner hole of female head pipe;Clamping assembly, it is movably arranged on the female head pipe, the end of the male head pipe insertion female head pipe peripheral side is provided with clamping groove, and the clamping groove is detachably connected with the clamping assembly.The utility model aims at overcoming the defect of " dismounting time-consuming " of existing welding torch connecting device.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding torch connection device. Background Technology

[0002] In the field of welding processing, the welding torch, as the component performing welding operations, needs to be connected to the welding machine via a connecting device. Currently, most mainstream welding torch connecting devices in the industry adopt a threaded connection structure. For example, the "welding torch connecting device" disclosed in announcement number CN213764624U and the "gas shielded welding torch connector and connecting device" disclosed in announcement number CN112338329B are typical examples. The core logic of both is to achieve the fixation between components through "threaded mating": the former is connected to the main connector through a threaded connection of the auxiliary connector and the main connector, while the latter is connected to the connector body through a threaded connection of the first connecting seat, thus completing the docking of the welding torch and the welding machine.

[0003] However, this type of welding torch connection device based on "multi-turn threaded connection" has the drawback of low disassembly and assembly efficiency in practical applications. This problem is particularly prominent in scenarios where welding torches need to be changed frequently (such as multi-station welding or switching between different welding processes). A lot of time needs to be spent rotating the connecting parts (such as the connecting sleeve or the connector body), which is not conducive to improving work efficiency.

[0004] Therefore, a welding torch connection device needs to be developed to address the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a welding torch connection device that overcomes the shortcomings of existing welding torch connection devices, which are characterized by "time-consuming disassembly and assembly".

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a welding torch connection device, including a connection seat and a connector body, and further comprising: The female tube has one end fixedly connected to the connecting seat; The male tube has one end fixedly connected to the connector body and the other end inserted into the inner hole of the female tube. A snap-fit ​​assembly is movably mounted on the female connector tube. A snap-fit ​​groove is provided on the periphery of one end of the male connector tube into the female connector tube. The snap-fit ​​groove is detachably connected to the snap-fit ​​assembly.

[0007] Optionally, the snap-fit ​​assembly includes a ball, a sleeve, an elastic component, and a limiting mechanism. The female tube has multiple receiving holes evenly distributed around its circumference at the end away from the connecting seat. The receiving holes are corresponding to and movably connected to the ball. The spherical crown of the ball protrudes from the receiving hole and snaps into the slot. The sleeve is rotatably fitted onto the female tube. The inner wall of the sleeve is provided with a plurality of clearance grooves for avoiding the sphere. The clearance grooves are arranged one-to-one with the receiving holes and are located on one side of the receiving holes. The elastic component is engaged between the sleeve and the connecting seat to reset the sleeve. The limiting mechanism is disposed between the sleeve and the female tube and is used to limit the rotation angle of the sleeve.

[0008] Optionally, the elastic component is a torsion spring, which is sleeved on the female tube. One end of the torsion spring is engaged with the connecting seat, and the other end of the torsion spring is engaged with the sleeve.

[0009] Optionally, the limiting mechanism includes a protrusion and a limiting groove. The protrusion is fixedly connected to the female tube, and the limiting groove is formed on the inner wall of the sleeve. A clearance groove is also formed on the inner wall of the sleeve. One end of the clearance groove is connected to the limiting groove, and the other end of the clearance groove passes through one end of the sleeve.

[0010] Optionally, the male tube has a chamfered edge on the end face away from the connector body.

[0011] Optionally, a protruding ring is fixed on the male tube, and the protruding ring is configured to contact the end face of the female tube away from the connector.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows: The connector and the connector body replace the threaded connection method by inserting male and female tubes and snapping the male tube with the snap-fit ​​component: When installing and connecting, simply rotate the sleeve at a certain angle and insert the male tube into the female tube, then release the sleeve to complete the installation. The operation is convenient, quick and easy, saving time and effort. When disassembling and separating, simply rotate the sleeve at a certain angle and pull out the male tube. The operation is convenient, quick and easy, saving time and effort. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of BB; Figure 4 This is a schematic diagram showing the structural state of the female and male connectors during assembly and disassembly. Figure 5 This is a schematic diagram of the cross-sectional structure of the casing; Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure of AA.

[0015] Explanation of reference numerals in the attached drawings: 100, connecting seat; 200, connector body; 300, female tube; 310, elastic retaining ring; 400, male tube; 410, slot; 401, chamfer; 402, convex ring; 500, sphere; 600, sleeve; 601, clearance groove; 700, elastic component; 800, protrusion; 900, limiting groove; 1000, clearance groove; 1100, snap-fit ​​hole. Detailed Implementation

[0016] The core of this utility model is to provide a welding torch connection device, which aims to overcome the shortcomings of existing welding torch connection devices that are "time-consuming to assemble and disassemble".

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "setting", "installing", "connecting", "joining", "fixing", "sleeving", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

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

[0020] In a specific embodiment of this utility model, such as Figures 1-6As shown, it includes a connector 100 and a connector body 200. The connector 100 can be the first connector in the patent with publication number CN112338329B, and the connector body 200 can be the connector body in the patent with publication number CN112338329B. This application also includes: The female tube 300 has one end fixedly connected to the connector 100, such as by integral molding, welding or screwing. The male tube 400 has one end fixedly connected to the connector body 200, such as by integral molding, welding or screwing, and the other end is inserted into the inner hole of the female tube 300. The snap-fit ​​assembly is movably mounted on the female tube 300. The male tube 400 is inserted into the female tube 300, and a snap-fit ​​groove 410 is provided on the periphery of one end. The snap-fit ​​groove 410 is detachably connected to the snap-fit ​​assembly.

[0021] In a specific embodiment of this utility model, such as Figures 1-6 As shown, the snap-fit ​​assembly includes a ball 500, a sleeve 600, an elastic component 700, and a limiting mechanism. Multiple receiving holes are evenly distributed around the circumference of the end of the female tube 300 away from the connecting seat 100. Each receiving hole corresponds to and is movably connected to the ball 500. The spherical crown of the ball 500 protrudes from the receiving hole and snaps into the slot 410. Specifically, the receiving hole includes a circular section and a conical section between the outer and inner walls of the female tube 300. The diameter of the circular section matches the diameter of the ball 500. The large-diameter end of the conical section communicates with the circular section, and the large-diameter end of the conical section matches the diameter of the circular section. The small-diameter end of the conical section is smaller than the diameter of the ball 500, thus allowing the spherical crown of the ball 500 to protrude from the small-diameter end of the conical section without causing the ball 500 to fall out. The sleeve 600 is rotatably fitted onto the female tube 300. Specifically, the inner wall of the sleeve 600 and the outer wall of the female tube 300 are clearance-fitted, allowing the sleeve 600 to rotate. Two elastic retaining rings 310 are snapped onto the female tube 300, and the sleeve 600 is located between the two elastic retaining rings 310 to prevent axial movement of the sleeve 600. The inner wall of the sleeve 600 is provided with multiple clearance grooves 601 for avoiding the ball 500. The clearance grooves 601 are correspondingly arranged with the receiving holes and located on one side of the receiving holes. When the clearance grooves 601 align with the receiving holes... When the timing is right, the spherical crown at one end of the ball 500 can enter the clearance groove 601, and the spherical crown at the other end can enter the tapered hole section; when the clearance groove 601 deviates from the receiving hole, the inner circumferential wall of the sleeve 600 contacts the spherical crown at one end of the ball 500, thereby causing the spherical crown at the other end of the ball 500 to protrude out of the receiving hole and engage with the slot 410; the side of the clearance groove 601 closest to the corresponding ball 500 is inclined, which facilitates pushing the ball 500 after the male tube 400 is inserted into or pulled out of the female tube 300, so that the spherical crown at one end can protrude out of the tapered hole section more smoothly; The elastic component 700 is snapped between the sleeve 600 and the connecting seat 100 to reset the sleeve 600; The limiting mechanism is set between the sleeve 600 and the female tube 300 to limit the rotation angle of the sleeve 600.

[0022] In a specific embodiment of this utility model, such as Figure 1 and 2 As shown, the elastic component 700 is a torsion spring, which is sleeved on the female tube 300. One end of the torsion spring is engaged with the snap-fit ​​hole 1100 on the connecting seat 100, and the other end of the torsion spring is engaged with the snap-fit ​​hole 1100 on the sleeve 600. Under normal conditions, the torsion spring keeps the sleeve 600 in a state where the "avoidance groove 601 is offset from the receiving hole", ensuring that the spherical crown at one end of the ball 500 protrudes from the receiving hole, so that the ball 500 is engaged with the snap-fit ​​groove 410.

[0023] In a specific embodiment of this utility model, such as Figure 5 and 6 As shown, the limiting mechanism includes a protrusion 800 and a limiting groove 900. The protrusion 800 is fixedly connected to the female tube 300, and the limiting groove 900 is formed on the inner wall of the sleeve 600. When the clearance groove 601 is "offset from the receiving hole", the protrusion 800 is located at one end of the limiting groove 900. When the clearance groove 601 is "aligned with the receiving hole", the protrusion 800 is located at the other end of the limiting groove 900. When rotating the sleeve 600, it means that it has been rotated to the correct position as long as it can no longer be rotated, without needing to consider whether the rotation angle is appropriate, thus improving the ease of operation. A clearance groove 1000 is also formed on the inner wall of the sleeve 600. One end of the clearance groove 1000 is connected to the limiting groove 900, and the other end of the clearance groove 1000 passes through one end of the sleeve 600. Through the setting of the clearance groove 1000, the protrusion 800 can enter the limiting groove 900 through the clearance groove 1000.

[0024] In a specific embodiment of this utility model, such as Figure 2 As shown, the male tube 400 has a 45° chamfer 401 on the end face edge away from the connector body 200. When the male tube 400 is inserted into the female tube 300, the chamfer 401 can push the spherical crown of the ball 500 so that the spherical crown enters the tapered section of the receiving hole.

[0025] In a specific embodiment of this utility model, such as Figure 1 and 2As shown, a protruding ring 402 is fixed on the male connector tube 400. The protruding ring 402 is positioned to contact the end face of the female connector tube 300 away from the connector seat 100, thereby limiting the depth of insertion of the male connector tube 400 into the female connector tube 300. When the protruding ring 402 contacts the female connector tube 300, the slot 410 aligns with the ball 500. During installation and docking, there is no need to consider whether the insertion depth is appropriate; it is sufficient to ensure that the protruding ring 402 contacts the female connector tube 300, thus improving the ease of operation.

[0026] Working principle: Installation and docking – At this point, under the action of the torsion spring (elastic component 700), the clearance groove 601 of the sleeve 600 is offset from the receiving hole, the protrusion 800 is located at one end of the limiting groove 900, and the inner circumference of the sleeve 600 contacts the spherical crown at one end of the ball 500, while the spherical crown at the other end of the ball 500 protrudes from the receiving hole; holding the sleeve 600, it is rotated clockwise against the torsion spring force, and the other end of the limiting groove 900 gradually moves towards the protrusion 800 until the two abut against each other, thereby aligning the clearance groove 601 with the receiving hole; holding the connector body 200, the male tube 400 is aligned with the inner hole of the female tube 300, and the chamfer 401 at the end of the male tube 400 contacts… As the ball 500 is inserted, its crown retracts into the receiving hole (the other end of the ball 500 enters the relief groove 601). The male tube 400 is then inserted until the convex ring 402 contacts the end face of the female tube 300. At this point, the groove 410 of the male tube 400 is aligned with the ball 500. The sleeve 600 is released, and the torsion spring drives the sleeve 600 to reset. The relief groove 601 gradually deviates from the receiving hole, and the inclined surface of the relief groove 601 pushes the ball 500 out of the receiving hole. When the inner circumference of the sleeve 600 contacts the crown at one end of the ball 500, the crown at the other end of the ball 500 is engaged in the groove 410.

[0027] Disassembly and separation: Hold the sleeve 600 and rotate it clockwise against the torsion spring force. The other end of the limiting groove 900 gradually moves towards the protrusion 800 until the two abut against each other, thereby aligning the relief groove 601 with the receiving hole. Hold the connector body 200 and pull it outward. The ball 500 retracts into the receiving hole under the pushing action of the slot 410, thus pulling out the male tube 400. Release the sleeve 600, and the torsion spring drives it to reset.

[0028] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0029] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A welding torch connection device, comprising a connecting seat (100) and a connector body (200), characterized in that, Also includes: The female tube (300) has one end fixedly connected to the connecting seat (100); The male tube (400) has one end fixedly connected to the connector body (200) and the other end inserted into the inner hole of the female tube (300); A snap-fit ​​assembly is movably mounted on the female tube (300). A snap-fit ​​groove (410) is provided on the periphery of one end of the male tube (400) into which it is inserted. The snap-fit ​​groove (410) is detachably connected to the snap-fit ​​assembly.

2. The welding torch connecting device according to claim 1, characterized in that: The snap-fit ​​assembly includes a ball (500), a sleeve (600), an elastic component (700), and a limiting mechanism. The female tube (300) has a plurality of receiving holes evenly distributed around its circumference at one end away from the connecting seat (100). The receiving holes are corresponding to and movably connected to the ball (500). The spherical crown of the ball (500) protrudes from the receiving hole and snaps into the slot (410). The sleeve (600) is rotatably sleeved on the female tube (300). The inner wall of the sleeve (600) is provided with a plurality of clearance grooves (601) for avoiding the ball (500). The clearance grooves (601) are provided one-to-one with the receiving hole and are located on one side of the receiving hole. The elastic component (700) is engaged between the sleeve (600) and the connecting seat (100) to reset the sleeve (600); The limiting mechanism is disposed between the sleeve (600) and the female tube (300) and is used to limit the rotation angle of the sleeve (600).

3. The welding torch connecting device according to claim 2, characterized in that: The elastic component (700) is a torsion spring, which is sleeved on the female tube (300). One end of the torsion spring is engaged with the connecting seat (100), and the other end of the torsion spring is engaged with the sleeve (600).

4. The welding torch connecting device according to claim 2 or 3, characterized in that: The limiting mechanism includes a protrusion (800) and a limiting groove (900). The protrusion (800) is fixedly connected to the female tube (300). The limiting groove (900) is formed on the inner wall of the sleeve (600). A clearance groove (1000) is also formed on the inner wall of the sleeve (600). One end of the clearance groove (1000) is connected to the limiting groove (900), and the other end of the clearance groove (1000) passes through one end of the sleeve (600).

5. The welding torch connecting device according to claim 2, characterized in that: The male tube (400) has a chamfer (401) on the end face edge away from the connector body (200).

6. The welding torch connecting device according to claim 5, characterized in that: A protruding ring (402) is fixed on the male tube (400), and the protruding ring (402) is in contact with the end face of the female tube (300) away from the connector (100).

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