Welding gun of multi-joint connecting ball head
By installing a multi-joint ball head between the welding torch handle and the welding cable, the problems of difficulty in adjusting the posture of the welding torch in a small space and large wrist load are solved, and higher handling flexibility and more stable welding cable wire feeding are achieved.
Patent Information
- Application Number
- CN202421866482.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing welding torch is difficult to adjust its posture in a smaller welding space, and the control flexibility is low, and the wrist load is high when the staff holds the welding torch handle for a long time.
Install a multi-joint ball head between the welding torch handle and the welding cable for connection, improving the flexibility of the welding torch handle when deflecting relative to the welding cable, and stably feeding the wire through the hollow ball head design.
It improves the handling flexibility of the welding torch handle, reduces the wrist load of staff when holding the welding torch handle, and promotes the stable wire feeding of welding cables.
Smart Images
Figure CN222890677U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of welding, and in particular relates to a welding gun with a multi-joint connection ball head. Background Art
[0002] The welding gun refers to the part that performs the welding operation during the welding process. The welding gun uses the high current and high voltage of the welding machine to generate heat that gathers at the terminal of the welding gun, melting the welding wire. The molten welding wire penetrates into the part to be welded. After cooling, the objects to be welded are firmly connected into one. In order to meet the welding requirements of the welding gun, the welding point of the welding gun needs to be adjusted using the welding gun handle.
[0003] A welding gun primarily consists of a welding gun handle, a neck protruding from the handle, and a welding cable connected to the handle. During welding, the worker holds the handle and drags the welding cable to weld the workpiece. In existing technology, the welding cable is often threaded onto the rear end of the welding gun handle, and the worker relies on the flexibility of the welding cable to adjust the position of the welding gun handle. This often presents the following problems:
[0004] 1. In a small welding space, it is not convenient to adjust the posture of the welding gun, and the control flexibility of the welding gun handle is low;
[0005] 2. When workers hold the welding gun handle for a long time, the grip strength required is high and the load on the wrist is large. Utility Model Content
[0006] To address these shortcomings, the present invention provides a welding gun with a multi-jointed ball joint. By installing a multi-jointed ball joint between the welding gun handle and the welding cable, the gun handle's flexibility when deflected relative to the welding cable is improved, reducing the load on the operator's wrist when gripping the gun handle. The multi-jointed ball joint utilizes a hollow core, facilitating stable feeding of the welding cable into the gun handle.
[0007] The utility model is realized through the following technical solutions:
[0008] A welding gun with a multi-joint connecting ball head comprises a welding gun handle, a gun neck protruding from the welding gun handle and a welding cable connected to the welding gun handle. A multi-joint connecting ball head is provided between the welding gun handle and the welding cable. The multi-joint connecting ball head comprises a first ball head, a connecting ball head, an end ball sleeve and a fastening sleeve. The first ball head comprises an integrally formed fixing ring and a hollow sphere. The fixing ring is fixed to the welding gun handle. The end ball sleeve is fixedly installed to the end of the welding cable. The connecting ball head is installed between the first ball head and the end ball sleeve. The number of connecting ball heads is at least one. The connecting ball head comprises an integrally formed connecting ball sleeve and a hollow sphere. The connecting ball sleeve has the same structure as the end ball sleeve. An arc surface that cooperates with the hollow sphere is formed in the connecting ball sleeve. The fastening sleeve is sleeved on the connecting ball sleeve so that the connecting ball sleeve locks the hollow sphere, thereby improving the flexibility of controlling the welding gun handle and reducing the load on the wrist when holding the welding gun handle.
[0009] Furthermore, the connecting ball sleeve is tapered, with its outer diameter gradually decreasing as it approaches the welding cable. A first deformation hole is defined in the connecting ball sleeve, extending through the side of the connecting ball sleeve closest to the welding gun handle. The connecting ball sleeve has a certain degree of deformation capability, and the provision of the first deformation hole in the connecting ball sleeve helps to enhance the deformation effect of the connecting ball sleeve.
[0010] Furthermore, the first deformation hole is in the shape of an elongated strip, and there are at least two first deformation holes, which are evenly distributed along the circumferential direction of the connecting ball sleeve. A plurality of first deformation holes are provided to improve the deformation ability of the connecting ball sleeve.
[0011] Furthermore, along the extension direction of the fastening sleeve, the inner diameter of the fastening sleeve is consistent, the inner diameter of the fastening sleeve is smaller than the maximum outer diameter of the connecting ball sleeve, and the fastening sleeve moves toward the welding gun handle relative to the connecting ball sleeve to circumferentially squeeze the connecting ball sleeve until the connecting ball sleeve locks the hollow sphere.
[0012] Furthermore, an anti-drop hole is provided on the connecting ball sleeve, and a guide groove connected to the anti-drop hole is provided on the side wall of the connecting ball sleeve. The depth of the guide groove gradually decreases in the direction approaching the anti-drop hole until it abuts against the anti-drop hole. An anti-drop column is protruding from the inner wall of the fastening sleeve. The anti-drop column has a guide slope on the side close to the welding gun handle. At the guide slope, the height of the anti-drop column gradually decreases in the direction close to the welding gun handle, which helps to prevent the fastening sleeve from detaching from the connecting ball sleeve after being installed in the connecting ball sleeve.
[0013] Furthermore, a positioning groove is provided on the outer wall of the connecting ball sleeve, and the positioning groove passes through the connecting ball sleeve along the extension direction of the connecting ball sleeve. A positioning sliding column that cooperates with the positioning groove is protruded from the inside of the fastening sleeve, which facilitates moving the anti-detachment column into the anti-detachment hole.
[0014] Furthermore, a guide expansion groove is provided in the direction of the positioning groove close to the welding cable. The width of the guide expansion groove gradually increases along the direction close to the welding cable. The minimum width of the guide expansion groove is consistent with the width of the positioning groove, which facilitates the positioning slide to be inserted into the positioning groove.
[0015] Furthermore, at least two anti-drop holes are provided, and the anti-drop holes are evenly distributed along the circumferential direction of the connecting ball sleeve, further improving the anti-drop capability of the fastening sleeve mounted on the connecting ball sleeve.
[0016] Furthermore, a second deformation hole is provided on the connecting ball sleeve, one end of the second deformation hole is connected to the anti-drop hole, and the other end passes through the side of the connecting ball sleeve close to the welding gun handle, thereby improving the deformation ability of the connecting ball sleeve.
[0017] Furthermore, an annular protrusion protrudes from the inner side of the welding gun handle, and an annular groove that cooperates with the annular protrusion is provided on the fixing ring. The welding gun handle includes a first half shell and a second half shell. The first half shell and the second half shell separate the annular protrusion into two halves. The first half shell and the second half shell are fastened together by bolts to achieve a fixed connection between the first ball head and the welding gun handle.
[0018] Beneficial effects of the utility model:
[0019] 1. By installing a multi-joint ball head between the welding gun handle and the welding cable, the flexibility of the welding gun handle when deflected relative to the welding cable is improved, and the wrist load when the worker holds the welding gun handle is reduced;
[0020] 2. The multi-jointed ball head adopts a hollow ball head, which helps to feed the welding cable stably into the welding gun handle. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic structural diagram for illustrating a schematic embodiment of a welding gun with a multi-jointed ball head in the present invention;
[0022] Figure 2 A schematic structural diagram for illustrating a cross-section of a welding gun with a multi-jointed ball head according to the present invention;
[0023] Figure 3 To illustrate Figure 2 A partial enlarged schematic diagram in the middle;
[0024] Figure 4 A schematic structural diagram for illustrating an exemplary embodiment of a multi-joint connection ball head in the present invention;
[0025] Figure 5 A schematic structural diagram for illustrating a schematic embodiment of a cutaway state of a multi-joint connection ball head in the present invention;
[0026] Figure 6 A schematic structural diagram for illustrating another exemplary embodiment of a cross-section state of a multi-joint connection ball head in the present invention;
[0027] Figure 7 A structural diagram for illustrating an illustrative embodiment of the fastening sleeve in the present invention.
[0028] List of parts and reference numerals:
[0029] 1. Welding gun handle; 11. First half shell; 12. Annular protrusion; 13. Bolt; 2. Welding cable; 3. Multi-joint connecting ball head; 31. First ball head; 311. Fixing ring; 3111. Annular groove; 32. Connecting ball head; 321. Connecting ball sleeve; 3211. Arc surface; 3212. First deformation hole; 3213. Anti-drop hole; 3214. Guide groove; 3215. Positioning groove; 3216. Guide expansion groove; 3217. Second deformation hole; 322. Hollow sphere; 33. Last ball sleeve; 34. Fastening sleeve; 341. Anti-drop column; 3411. Guide slope; 342. Positioning slide column. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0031] It should be noted that the directional terms such as left, right, up, down, front and back in the embodiments of the present invention are merely relative concepts or are based on the normal use state of the product, that is, the direction of movement of the product, and should not be considered as limiting.
[0032] In addition, it should be noted that the dynamic terms such as "relative motion" mentioned in the embodiments of the present invention not only refer to changes in position, but also include movements such as rotation and rolling where there is no relative change in position but the state is changed.
[0033] Finally, it should be noted that when a component is referred to as being "located on" or "disposed on" another component, it can be on the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0034] like Figures 1 to 7The welding gun with a multi-joint connection ball head shown in the figure comprises a welding gun handle 1, a gun neck protruding from the welding gun handle 1, and a welding cable 2 connected to the welding gun handle 1. A multi-joint connection ball head 3 is provided between the welding gun handle 1 and the welding cable 2. The multi-joint connection ball head 3 comprises a first ball head 31, a connecting ball head 32, an end ball sleeve 33 and a fastening sleeve 34. The first ball head 31 comprises an integrally formed fixing ring 311 and a hollow sphere 322. The fixing ring 311 is fixed to the welding gun handle 1, and the end ball sleeve 33 is fixedly installed to the end of the welding cable 2. The connecting ball head 32 is installed between the first ball head 31 and the last ball sleeve 33. The number of the connecting ball head 32 is at least one. The connecting ball head 32 includes an integrally formed connecting ball sleeve 321 and a hollow sphere 322. The connecting ball sleeve 321 has the same structure as the last ball sleeve 33. An arcuate surface 3211 is formed in the connecting ball sleeve 321 to cooperate with the hollow sphere 322. The fastening sleeve 34 is sleeved on the connecting ball sleeve 321 so that the connecting ball sleeve 321 locks the hollow sphere 322, thereby improving the flexibility of manipulating the welding gun handle 1 and reducing the load on the wrist when holding the welding gun handle 1.
[0035] In one embodiment, the fixing ring 311 of the first ball joint 31 is first installed into the first housing of the welding gun handle 1, so that the annular groove 3111 on the fixing ring 311 engages with the annular protrusion 12 in the welding gun handle 1. The second housing is then fastened to the first housing via bolts 13, so that the fixing ring 311 is fixed to the end of the welding gun handle 1. The hollow ball head of the first ball joint 31 is pressed into the connecting ball sleeve 321 of the connecting ball joint 32, and the hollow ball head is engaged with the arcuate surface 3211 of the connecting ball sleeve 321. A tightening sleeve 34 is fitted onto the outside of the connecting ball sleeve 321, and then squeezed, causing the tightening sleeve 34 to move relative to the connecting ball sleeve 321 toward the welding gun handle 1. Since the inner diameter of the tightening sleeve 34 is uniform, the outer diameter of the connecting ball sleeve 321 increases toward the welding gun handle 1. The tightening sleeve 34 squeezes the connecting ball sleeve inward, causing the connecting ball sleeve 321 to deform inward, thereby locking the connecting ball sleeve 321 against the hollow ball head. This prevents the hollow ball head from becoming detached from the connecting ball sleeve 321. Similarly, the hollow sphere 322 of the connecting ball head 32 is installed into the final ball sleeve 33 at the front end of the welding cable 2, and a new tightening sleeve 34 is used to secure the final ball sleeve 33, thereby achieving a multi-jointed ball joint connection between the welding gun handle 1 and the welding cable 2.
[0036] In one embodiment, the multi-joint connection ball head 3 between the welding gun handle 1 and the welding cable 2 may adopt multiple connection ball heads 32 , so that the welding gun handle 1 can be bent more flexibly relative to the welding cable 2 .
[0037] Preferably, the connecting ball sleeve 321 is tapered, with its outer diameter gradually decreasing as it approaches the welding cable 2. A first deformation hole 3212 is defined in the connecting ball sleeve 321, extending through the side of the connecting ball sleeve 321 proximal to the welding gun handle 1. The connecting ball sleeve 321 has a certain degree of deformation capability, and the provision of the first deformation hole 3212 in the connecting ball sleeve 321 helps to enhance the deformation effect of the connecting ball sleeve 321.
[0038] In one embodiment, the first deformation hole 3212 separates the side of the connecting ball sleeve 321 close to the welding gun handle 1 to form an arc-shaped sheet structure, which helps the fastening sleeve 34 to squeeze the connecting ball sleeve 321, causing the connecting ball sleeve 321 to deform inward.
[0039] Preferably, the first deformation hole 3212 is in the shape of an elongated strip, and there are at least two first deformation holes 3212 . The first deformation holes 3212 are evenly distributed along the circumferential direction of the connecting ball sleeve 321 . A plurality of first deformation holes 3212 are provided to improve the deformation capability of the connecting ball sleeve 321 .
[0040] Preferably, the inner diameter of the fastening sleeve 34 is consistent along the extension direction of the fastening sleeve 34, and the inner diameter of the fastening sleeve 34 is smaller than the maximum outer diameter of the connecting ball sleeve 321. The fastening sleeve 34 moves toward the welding gun handle 1 relative to the connecting ball sleeve 321 to circumferentially squeeze the connecting ball sleeve 321 until the connecting ball sleeve 321 locks the hollow sphere 322.
[0041] Preferably, an anti-drop hole 3213 is provided on the connecting ball sleeve 321, and a guide groove 3214 connecting to the anti-drop hole 3213 is provided on the side wall of the connecting ball sleeve 321. In the direction approaching the anti-drop hole 3213, the depth of the guide groove 3214 gradually decreases until it abuts against the anti-drop hole 3213. An anti-drop column 341 is protruded from the inner wall of the fastening sleeve 34. The anti-drop column 341 has a guide bevel 3411 on the side close to the welding gun handle 1. At the guide bevel 3411, the height of the anti-drop column 341 gradually decreases in the direction close to the welding gun handle 1, which helps to prevent the fastening sleeve 34 from detaching from the connecting ball sleeve 321 after being installed in the connecting ball sleeve 321.
[0042] In one embodiment, after the fastening sleeve 34 squeezes the connecting ball sleeve 321, in order to prevent the connecting ball sleeve 321 from elastically rebounding, an anti-slip column 341 is provided on the fastening sleeve 34. When the fastening sleeve 34 is installed to the connecting ball sleeve 321, the anti-slip column 341 is inserted into the anti-slip hole 3213 to fix the fastening sleeve 34 and the connecting ball sleeve 321.
[0043] In one embodiment, when the fastening sleeve 34 is sleeved onto the connecting ball sleeve 321, the guide slope 3411 of the anti-slip column 341 of the fastening sleeve 34 first abuts against the guide groove 3214, and the fastening sleeve 34 slides along the connecting ball sleeve 321, and the anti-slip column 341 moves into the anti-slip hole 3213 along the guide groove 3214, thereby realizing the clamping and fixation of the connecting ball sleeve 321 and the fastening sleeve 34.
[0044] Preferably, a positioning groove 3215 is also provided on the outer wall of the connecting ball sleeve 321. The positioning groove 3215 passes through the connecting ball sleeve 321 along the extension direction of the connecting ball sleeve 321. A positioning slide column 342 that cooperates with the positioning groove 3215 is protruded from the interior of the fastening sleeve 34, which facilitates moving the anti-detachment column 341 into the anti-detachment hole 3213.
[0045] In one embodiment, in order to facilitate the precise matching of the anti-slip column 341 and the anti-slip hole 3213, a positioning groove 3215 is provided on the outside of the connecting ball sleeve 321, and a positioning sliding column 342 matching the positioning groove 3215 is provided on the inner side of the fastening sleeve 34, so that the fastening sleeve 34 can only slide along the extension direction of the connecting ball sleeve 321, preventing the fastening sleeve 34 from deflecting in the circumferential direction relative to the connecting ball sleeve 321, thereby facilitating the anti-slip column 341 to be clamped into the anti-slip hole 3213.
[0046] Preferably, a guide expansion groove 3216 is provided in the direction of the positioning groove 3215 close to the welding cable 2. The width of the guide expansion groove 3216 gradually increases along the direction close to the welding cable 2. The minimum width of the guide expansion groove 3216 is consistent with the width of the positioning groove 3215, which facilitates the positioning slide 342 to be inserted into the positioning groove 3215.
[0047] Preferably, at least two anti-drop holes 3213 are provided, and the anti-drop holes 3213 are evenly distributed along the circumferential direction of the connecting ball sleeve 321 , further improving the anti-drop capability of the fastening sleeve 34 mounted on the connecting ball sleeve 321 .
[0048] Preferably, a second deformation hole 3217 is further provided on the connecting ball sleeve 321 , one end of the second deformation hole 3217 is connected to the anti-drop hole 3213 , and the other end passes through the side of the connecting ball sleeve 321 close to the welding gun handle 1 , thereby improving the deformation ability of the connecting ball sleeve 321 .
[0049] Preferably, an annular protrusion 12 is protruded from the inner side of the welding gun handle 1, and an annular groove 3111 is provided on the fixing ring 311 to cooperate with the annular protrusion 12. The welding gun handle 1 includes a first half shell 11 and a second half shell. The first half shell 11 and the second half shell separate the annular protrusion 12 into two halves. The first half shell 11 and the second half shell are fastened together by bolts 13 to achieve a fixed connection between the first ball head 31 and the welding gun handle 1.
[0050] When using a welding gun with a multi-jointed ball joint, the multi-jointed ball joint is installed between the welding gun handle 1 and the welding cable 2. This improves the flexibility of the welding gun handle 1 when it deflects relative to the welding cable 2, reducing the load on the operator's wrist when holding the welding gun handle 1. The multi-jointed ball joint uses a hollow ball joint, which helps to ensure stable feeding of the welding cable 2 into the welding gun handle 1.
[0051] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.
Claims
1. A welding gun with a multi-jointed ball head, comprising a welding gun handle, a gun neck protruding from the welding gun handle, and a welding cable connected to the welding gun handle, characterized in that: A multi-joint connecting ball head is provided between the welding gun handle and the welding cable, and the multi-joint connecting ball head includes a first ball head, a connecting ball head, an end ball sleeve and a tightening sleeve, the first ball head includes an integrally formed fixing ring and a hollow sphere, the fixing ring is fixed to the welding gun handle, the end ball sleeve is fixedly installed to the end of the welding cable, the connecting ball head is installed between the first ball head and the end ball sleeve, the number of the connecting ball heads is at least 1, the connecting ball head includes an integrally formed connecting ball sleeve and a hollow sphere, the connecting ball sleeve has the same structure as the end ball sleeve, an arc surface matching the hollow sphere is formed in the connecting ball sleeve, and the tightening sleeve is sleeved on the connecting ball sleeve so that the connecting ball sleeve locks the hollow sphere.
2. A welding gun with a multi-jointed ball head according to claim 1, characterized in that: The connecting ball sleeve is in a cone shape, and the outer diameter of the connecting ball sleeve gradually decreases along the direction approaching the welding cable. A first deformation hole is opened on the connecting ball sleeve, and the first deformation hole passes through the side of the connecting ball sleeve close to the welding gun handle.
3. A welding gun with a multi-jointed ball head according to claim 2, characterized in that: The first deformation hole is in the shape of an elongated strip, and the number of the first deformation holes is at least 2, and the first deformation holes are evenly distributed along the circumferential direction of the connecting ball sleeve.
4. A welding gun with a multi-jointed ball head according to claim 1, characterized in that: The inner diameter of the fastening sleeve is consistent along the extension direction of the fastening sleeve, and the inner diameter of the fastening sleeve is smaller than the maximum outer diameter of the connecting ball sleeve. The fastening sleeve moves toward the welding gun handle relative to the connecting ball sleeve to circumferentially squeeze the connecting ball sleeve until the connecting ball sleeve locks the hollow sphere.
5. A welding gun with a multi-jointed ball head according to claim 1, characterized in that: An anti-drop hole is provided on the connecting ball sleeve, and a guide groove connected to the anti-drop hole is provided on the side wall of the connecting ball sleeve, and the depth of the guide groove gradually decreases in the direction approaching the anti-drop hole until it abuts against the anti-drop hole, and an anti-drop column protrudes from the inner wall of the fastening sleeve, and the anti-drop column has a guiding inclined surface on the side close to the welding gun handle, and at the guiding inclined surface, the height of the anti-drop column gradually decreases in the direction close to the welding gun handle.
6. A welding gun with a multi-jointed ball head according to claim 5, characterized in that: The outer wall of the connecting ball sleeve is also provided with a positioning groove, and the positioning groove penetrates the connecting ball sleeve along the extending direction of the connecting ball sleeve. A positioning sliding column cooperating with the positioning groove protrudes from the interior of the fastening sleeve.
7. A welding gun with a multi-jointed ball head according to claim 6, characterized in that: The positioning groove is provided with a guide expansion groove in a direction close to the welding cable. The width of the guide expansion groove gradually increases along the direction close to the welding cable, and the minimum width of the guide expansion groove is consistent with the width of the positioning groove.
8. A welding gun with a multi-jointed ball head according to claim 5, characterized in that: At least two anti-drop holes are provided, and the anti-drop holes are evenly distributed along the circumferential direction of the connecting ball sleeve.
9. A welding gun with a multi-jointed ball head according to claim 5, characterized in that: The connecting ball sleeve is also provided with a second deformation hole, one end of which is connected to the anti-drop hole, and the other end of which passes through a side of the connecting ball sleeve close to the welding gun handle.
10. A welding gun with a multi-jointed ball head according to claim 1, characterized in that: An annular protrusion protrudes from the inner side of the welding gun handle, and an annular groove cooperating with the annular protrusion is formed on the fixing ring. The welding gun handle includes a first half shell and a second half shell, and the first half shell and the second half shell separate the annular protrusion into two halves, and the first half shell and the second half shell are fastened and connected by bolts.