An easy-to-replace welding head

Abstract

This utility model provides a replaceable welding head, relating to the field of welding device technology. It includes a cylinder linkage assembly connected to a lifting module, comprising a quick-connect male connector and a quick-connect female connector. The quick-connect female connector is connected to the welding head. When the welding head needs to be replaced, simply separate the quick-connect female connector and the quick-connect male connector. The quick-connect male connector is provided with a quick-connect boss, and a snap-fit ​​spring ball is arranged around the circumference of the quick-connect boss. A spring is installed inside the quick-connect boss, and one end of the spring is connected to the snap-fit ​​spring ball. The advantage of this utility model is that connection and separation are achieved through the quick-connect male and quick-connect female connectors in the cylinder linkage assembly. Simply cutting off the high-pressure gas releases the locking state of the snap-fit ​​spring ball, thereby quickly separating the connector and simplifying the replacement process. Whether for manual or automated robotic replacement, efficient and seamless switching can be achieved, greatly reducing equipment downtime.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding head that is easy to replace. Background Technology

[0002] Soldering heads are widely used in various industries, such as electronics manufacturing, machining, automotive manufacturing, aerospace, and medical equipment. In electronics manufacturing, soldering iron tips are used to solder electronic components on circuit boards; in machining, laser welding heads enable high-precision welding of metal parts; in automotive manufacturing, spot welding heads are used for assembling and welding car bodies; in aerospace, welding heads can be used to manufacture aircraft parts; and in medical equipment manufacturing, welding heads can be used to weld precision components of medical devices.

[0003] With the development of automation technology, welding processes have gradually become fully automated, with most welding work being completed by robotic arms. Since different welding parts require different welding heads, how to quickly and easily change welding heads has become a crucial problem that urgently needs to be solved.

[0004] The technical content disclosed in the Chinese patent document (Announcement No.: CN220278572U, Patent Name: A Welding Device for Easy Replacement of Welding Heads) is as follows: When it is necessary to replace the welding head, rotating the bidirectional threaded rod can move the two clamping plates back to back, causing the two clamping plates to disengage from the inside of the slot; rotating the worm gear causes the worm wheel to rotate, which in turn causes the gear to move the toothed plate and the welding head downward, disengaging the old welding head from the connector; inserting the new welding head into the slot, rotating the worm gear causes the worm wheel to rotate, which in turn causes the gear to move the toothed plate and the welding head upward, inserting the welding head into the slot; and rotating the bidirectional threaded rod can move the two clamping plates relative to each other, clamping and fixing the outer side of the welding head, thereby achieving rapid replacement of the welding head.

[0005] As can be seen from the content of the above patent documents, this welding device is equipped with a gear plate to realize the pushing out and inserting of the welding head. Although it can realize automatic replacement of welding head, it fails to achieve the effect of one-click replacement, which is not convenient and fast enough. Utility Model Content

[0006] The utility model overcomes the shortcomings of the prior art and provides a welding head that is easy to replace. It achieves connection and separation through the quick male and quick female connectors in the cylinder linkage group. Simply cutting off the high-pressure gas releases the locking state of the locking spring ball, thereby quickly separating the connector and simplifying the replacement process. Whether it is manual replacement or robotic automated replacement, it can achieve efficient and seamless switching, greatly reducing equipment downtime.

[0007] To solve the above-mentioned technical problems, the utility model is implemented through the following technical solution: A replaceable welding head includes a cylinder linkage assembly connected to a lifting module. The cylinder linkage assembly includes a quick-connect male connector and a quick-connect female connector, with the quick-connect female connector connected to the welding head. When the welding head needs to be replaced, the quick-connect female connector and the quick-connect male connector can be separated. The quick-connect male connector is provided with a quick-connect boss, and a snap-fit ​​spring ball is provided around the circumference of the quick-connect boss. A spring is provided inside the quick-connect boss, and one end of the spring is connected to the snap-fit ​​spring ball. The quick-connect female connector has a quick-connect inner groove at its center, and a quick-connect locking position is provided on the inner side wall of the quick-connect inner groove. When the quick-connect male connector and quick-connect female connector are connected, the locking spring ball is squeezed and retracts into the quick-connect boss. When the connection is completed, the locking spring ball protrudes out of the outer periphery of the quick-connect boss under the elastic force of the spring and is locked in the quick-connect inner groove.

[0008] Furthermore, the quick-connect male connector is provided with a positioning pin, and the quick-connect female connector is provided with a pin hole. When the quick-connect male connector and the quick-connect female connector are mated together, the positioning pin is inserted into the pin hole.

[0009] Furthermore, there are two pin holes, and the center distance between the two pin holes is L. L is equal to L.

[0010] Furthermore, the cylinder linkage assembly includes a cylinder base, and the cylinder base is connected to the slide cylinder; The slide cylinder includes a body and a slider. The slider is L-shaped, with a side connecting plate connected to the side of the slider and a bottom connecting plate connected to the bottom surface.

[0011] Furthermore, a positioning groove is provided on the side of the bottom connecting plate away from the slide cylinder, and a mating plane is provided on the outer periphery of the positioning groove. A positioning convex platform is provided on the side of the quick connector away from the quick protrusion. A joint edge support surface is provided on the outside of the positioning convex platform. The bottom connecting plate and the quick connector are connected by bolts; when the two are connected, the positioning convex round plate is inserted into the positioning groove, and the mating plane is in close contact with the supporting surface of the joint edge.

[0012] Furthermore, the quick-connect female connector is connected to a welding linkage seat, which is used to connect the welding head.

[0013] Furthermore, a clamping block is provided at the end of the welding linkage seat away from the quick female connector. The clamping block is connected to the welding linkage seat by bolts and clamps the welding head between the two.

[0014] Furthermore, the outer peripheral surface of the quick-connect boss is provided with an annular guide slope. During the docking process of the quick-connect male and quick-connect female connectors, the annular guide slope forms a guiding fit with the inlet edge of the quick-connect inner groove, so that the snap-fit ​​spring ball can be gradually pressed into the quick-connect boss during the docking process, thereby achieving automatic alignment and smooth connection, and preventing connection failure due to misalignment or tilt.

[0015] Furthermore, the protruding part of the snap-fit ​​spring ball is provided with a wear-resistant coating, and the snap-fit ​​inner groove is provided with an arc-shaped slot that matches the snap-fit ​​spring ball. The snap-fit ​​spring ball is embedded into the arc-shaped slot under the action of the spring force, thereby realizing dual positioning and anti-loosening functions.

[0016] Compared with existing technologies, the advantages of this utility model are: 1. Connection and separation are achieved through quick male and quick female connectors in the cylinder linkage assembly. Simply cutting off the high-pressure gas releases the locking state of the snap-fit ​​spring ball, thereby quickly separating the connector and simplifying the replacement process. Whether it is manual replacement or automated replacement by robots, efficient and seamless switching can be achieved, greatly reducing equipment downtime.

[0017] The snap-fit ​​spring ball is linked to the high-pressure gas for locking. In the connected state, the high-pressure gas maintains a stable connection, prevents accidental loosening, and ensures operational safety.

[0018] 2. The slide cylinder is connected to the side and bottom connecting plates via an L-shaped slider, providing stable support and enhancing the overall system's vibration resistance. The positioning groove between the bottom connecting plate and the quick connector engages with the convex round plate: the insertion and engagement of the positioning convex round plate and the positioning groove, combined with the tight fit between the mating plane and the support surface, ensures uniform stress on the structure. Compared to the traditional method of using an XY platform to lift the welding head, the slide cylinder is simple and quick to install, eliminating the need to level the XY platform of the equipment, saving debugging time and improving ease of use. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the utility model and, together with the embodiments of the utility model, are used to explain the utility model. They do not constitute a limitation on the utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the welding head according to an embodiment of the present invention; Figure 2 This is a first exploded schematic diagram of the cylinder linkage assembly according to an embodiment of the present invention; Figure 3 This is a second exploded schematic diagram of the cylinder linkage assembly according to an embodiment of the present invention; Figure 4 This is an exploded view of the quick-connect female connector, welding linkage seat, and welding head according to an embodiment of this utility model.

[0020] In the diagram: 1. Lifting module; 2. Cylinder linkage assembly; 201. Cylinder base; 202. Slide cylinder; 203. Side connecting plate; 204. Bottom connecting plate; 2041. Positioning groove; 205. Quick connector; 2051. Positioning convex frustum; 2052. Joint edge support surface; 2053. Quick boss; 20531. Snap-fit ​​spring ball; 2054. Positioning pin; 206. Quick connector; 2061. Quick connector inner groove; 2062. Pin hole; 207. Welding linkage seat; 2071. Clamping block; 208. Welding head. Detailed Implementation

[0021] The preferred embodiments of the utility model are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the utility model.

[0022] like Figures 1 to 4 As shown, a replaceable welding head includes a cylinder linkage assembly 2 connected to a lifting module 1, the core of which lies in its quick connection and disconnection mechanism. The cylinder linkage assembly 2 includes a quick-connect male connector 205 and a quick-connect female connector 206, with the quick-connect female connector 206 connected to the welding head 208. When the welding head 208 needs to be replaced, simply separate the quick-connect female connector 206 and the quick-connect male connector 205. The quick-connect male connector 205 is provided with a quick-connect boss 2053, and a snap-fit ​​spring ball 20531 is provided around the circumference of the quick-connect boss 2053. A spring is provided inside the quick-connect boss 2053, with one end of the spring connected to the snap-fit ​​spring ball 20531. The quick-connect female connector 206 has a quick-connect inner groove 2061 at its center, and a quick-connect locking position is provided on the inner wall of the quick-connect inner groove 2061. During the docking process between the quick-connect male connector 205 and the quick-connect female connector 206, the snap-fit ​​spring ball 20531 is compressed and retracts into the quick-connect boss 2053. When the docking is complete, the snap-fit ​​spring ball 20531 retracts into the quick-connect boss 2053. Under the elastic force of the spring, the spring ball 20531 protrudes from the outer periphery of the quick-connect boss 2053 and is engaged in the quick-connect inner groove 2061. When the spring ball 20531 is engaged in the quick-connect inner groove 2061, high-pressure gas is filled into the quick-connect boss 2053. The high-pressure gas presses against the spring ball 20531 to prevent it from retracting. At this time, the quick-connect female connector 206 and quick-connect male connector 205 cannot be separated. Therefore, when it is necessary to replace the welding head 208 of different specifications, simply disconnect the high-pressure gas so that the spring ball 20531 is not pressed against it. Then, the quick-connect female connector 206 and quick-connect male connector 205 can be pulled apart. This one-click disassembly and separation method makes the replacement of the welding head 208 quick and convenient, whether it is done manually or automatically by the equipment.

[0023] The protruding portion of the snap-fit ​​spring ball 20531 is coated with a wear-resistant coating to improve its service life and reduce wear. The snap-fit ​​inner groove 2061 has an arc-shaped groove on its locking surface that matches the snap-fit ​​spring ball 20531. Under the action of spring force, the snap-fit ​​spring ball 20531 is embedded into the arc-shaped groove to achieve dual positioning and anti-loosening functions. This structure not only enhances the stability of the connection, but also effectively prevents welding failure caused by connection loosening during high-frequency vibration or continuous operation.

[0024] The quick male connector 205 is provided with a positioning pin 2054, and the quick female connector 206 is provided with a pin hole 2062. When the quick male connector 205 and the quick female connector 206 are mated together, the positioning pin 2054 is inserted into the pin hole 2062. There are two pin holes 2062, with a center distance of L1 between them. The center distance between the two pin holes 2062 is L2, and L1 equals L2. The positioning pin 2054 and the pin hole 2062 ensure more accurate mating of the quick-connect female connector 206 and quick-connect male connector 205. As long as the positioning pin 2054 and the pin hole 2062 are aligned, the snap-fit ​​spring ball 20531 can smoothly slide into the arc-shaped slot. Furthermore, the mating of the positioning pin 2054 and the pin hole 2062 strengthens the cross-sectional structure of the cylinder linkage group 2. This double-pin positioning design not only enhances the axial stability of the connection but also effectively prevents connection failure due to deflection or misalignment, thereby improving the overall system reliability.

[0025] The cylinder linkage assembly 2 includes a cylinder base 201, which is connected to a slide cylinder 202. The slide cylinder 202 includes a body and a slider. The slider is L-shaped, with a side connecting plate 203 connected to the side of the slider and a bottom connecting plate 204 connected to the bottom surface.

[0026] A positioning groove 2041 is provided on the side of the bottom connecting plate 204 away from the slide cylinder 202. A mating plane is provided on the outer periphery of the positioning groove 2041. A positioning convex cylinder 2051 is provided on the side of the quick connector 205 away from the quick-release boss 2053. A joint edge support surface 2052 is provided on the outer side of the positioning convex cylinder 2051. During assembly, the positioning convex cylinder 2051 is inserted into the positioning groove 2041, and the mating plane and the joint edge support surface 2052 are tightly fitted to ensure a stable connection and uniform force distribution. The two are fixed together with bolts, further improving the rigidity and vibration resistance of the overall structure.

[0027] The quick-connect female connector 206 connects to the welding linkage seat 207, which is used to connect the welding head 208. A clamping block 2071 is provided at the end of the welding linkage seat 207 away from the quick-connect female connector 206. The clamping block 2071 is connected to the welding linkage seat 207 by bolts, and the welding head 208 is clamped between the two. This clamping method is not only simple in structure, but also has adjustable clamping force and is easy to replace. It is suitable for welding heads 208 of various specifications, which enhances the adaptability and versatility of the equipment. When the welding head 208 needs to be replaced, it is only necessary to separate the clamping block 2071 from the welding linkage seat 207, which is convenient and quick.

[0028] The outer peripheral surface of the quick-connect boss 2053 is provided with an annular guide slope 20532. During the docking process of the quick male connector 205 and the quick female connector 206, the annular guide slope 20532 forms a guiding fit with the entrance edge of the quick-connect inner groove 2061, so that the snap-fit ​​spring ball 20531 can be gradually pressed into the quick-connect boss 2053 during the docking process, thereby achieving automatic alignment and smooth connection, and preventing connection failure due to misalignment or tilt.

[0029] The welding head of this utility model is connected and separated through the quick male connector 205 and quick female connector 206 in the cylinder linkage group 2. The locking state of the snap-fit ​​spring ball 20531 can be released simply by cutting off the high pressure gas, thereby quickly separating the connector and simplifying the replacement process. Whether it is manual replacement or robotic automated replacement, it can achieve efficient and seamless switching, greatly shortening equipment downtime.

[0030] The snap-fit ​​spring ball is linked to the high-pressure gas for locking. In the connected state, the high-pressure gas maintains a stable connection, prevents accidental loosening, and ensures operational safety.

[0031] The slide cylinder 202 is connected to the side connecting plate 203 and the bottom connecting plate 204 via an L-shaped slider, providing stable support and enhancing the overall system's vibration resistance. The positioning groove between the bottom connecting plate and the quick connector engages with the convex round plate: through the insertion and engagement of the positioning convex round plate 2051 and the positioning groove 2041, combined with the tight fit between the mating plane and the support surface, the structure is ensured to be subjected to uniform stress. Compared with the traditional method of using an XY platform to lift the welding head 208, the installation of the slide cylinder 202 is simple and quick, eliminating the need to level the XY platform of the equipment, saving debugging time, and also achieving ease of use.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A replaceable welding head, characterized in that, The cylinder linkage assembly (2) is connected to the lifting module (1). The cylinder linkage assembly (2) includes a quick male connector (205) and a quick female connector (206). The quick female connector (206) is connected to the welding head (208). When the welding head (208) needs to be replaced, the quick female connector (206) and the quick male connector (205) can be separated. The quick connector (205) is provided with a quick boss (2053), and a snap-fit ​​spring ball (20531) is provided around the circumference of the quick boss (2053). A spring is provided inside the quick boss (2053), and one end of the spring is connected to the snap-fit ​​spring ball (20531). The quick-connect female connector (206) is provided with a quick-connect inner groove (2061) at its center. The inner wall of the quick-connect inner groove (2061) is provided with a quick-locking position. When the quick-connect male connector (205) and the quick-connect female connector (206) are connected, the locking spring ball (20531) is squeezed and retracts into the quick-connect boss (2053). When the connection is completed, the locking spring ball (20531) protrudes out of the outer periphery of the quick-connect boss (2053) under the elastic force of the spring and is locked in the quick-connect inner groove (2061).

2. A replaceable welding tip as defined in claim 1, wherein The quick male connector (205) is provided with a positioning pin (2054), and the quick female connector (206) is provided with a pin hole (2062). When the quick male connector (205) and the quick female connector (206) are connected together, the positioning pin (2054) is inserted into the pin hole (2062).

3. A replaceable welding tip as defined in claim 2, wherein There are two pin holes (2062), and the center distance between the two pin holes (2062) is L1. There are two pin holes (2062), and the center distance between the two pin holes (2062) is L2. L1 equals L2.

4. The easily replaceable welding head according to claim 1, characterized in that, The cylinder linkage assembly (2) includes a cylinder base (201), and the cylinder base (201) is connected to the slide cylinder (202). The slide cylinder (202) includes a body and a slider. The slider is L-shaped, with a side connecting plate (203) connected to the side of the slider and a bottom connecting plate (204) connected to the bottom.

5. The easily replaceable welding head according to claim 4, characterized in that, The bottom connecting plate (204) is provided with a positioning groove (2041) on the side away from the slide cylinder (202). The positioning groove (2041) has a mating plane on its outer periphery. The quick connector (205) is provided with a positioning convex cylinder (2051) on the side away from the quick boss (2053). The positioning convex cylinder (2051) has a joint edge support surface (2052) on its outer side. The bottom connecting plate (204) and the quick connector (205) are connected by bolts; when the two are connected, the positioning convex round plate (2051) is inserted into the positioning groove (2041), and the mating plane is in close contact with the joint edge support surface (2052).

6. A replaceable welding tip according to any one of claims 1 to 5, wherein The quick-connect female connector (206) is connected to the welding linkage seat (207), which is used to connect the welding head (208).

7. The easily replaceable welding head according to claim 6, characterized in that, The welding linkage seat (207) is provided with a clamping block (2071) at the end away from the quick female connector (206). The clamping block (2071) is connected to the welding linkage seat (207) by bolts and clamps the welding head (208) between the two.

8. A replaceable welding head according to any one of claims 1 to 5, characterized in that, The outer peripheral surface of the quick-connect boss (2053) is provided with an annular guide slope (20532). During the docking process of the quick male connector (205) and the quick female connector (206), the annular guide slope (20532) and the entrance edge of the quick-connect inner groove (2061) form a guiding fit, so that the snap-fit ​​spring ball (20531) can be gradually pressed into the quick-connect boss (2053) during the docking process, thereby realizing automatic centering and smooth connection, and preventing connection failure due to misalignment or tilt.

9. A replaceable welding head according to any one of claims 1 to 5, characterized in that, The protruding part of the snap-fit ​​spring ball (20531) is provided with a wear-resistant coating, and the snap-fit ​​inner groove (2061) is provided with an arc-shaped slot that matches the snap-fit ​​spring ball (20531). The snap-fit ​​spring ball (20531) is embedded in the arc-shaped slot under the action of spring force, thereby realizing dual positioning and anti-loosening function.

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