Pressure nozzle piece of welding pressure head tool, welding pressure head tool and welding equipment

Abstract

The invention discloses a pressure nozzle piece of a welding pressure head tool, the welding pressure head tool and welding equipment, and relates to the field of welding. A welding channel is arranged in the nozzle pressing piece, an opening and a welding opening which are communicated with the welding channel are formed in the two ends of the nozzle pressing piece, the opening end of the nozzle pressing piece is used for being in butt joint with a welding head, and the welding opening end of the nozzle pressing piece is used for being pressed on a workpiece to be welded. The pressure nozzle piece comprises at least two pressure dividing pieces which are independently machined, and the at least two pressure dividing pieces are distributed in the circumferential direction of the welding channel. According to the embodiment of the invention, the nozzle pressing piece has the capability of adaptively pressing the workpiece to be welded, so that the welding quality is improved.

Description

Technical Field

[0001] The invention relates to the field of welding, and in particular to a pressure nozzle piece of a welding pressure head tool, a welding pressure head tool and welding equipment. Background Art

[0002] In some existing laser welding technologies, a metal copper sleeve of corresponding size is designed according to the welding track of the welded parts. This copper sleeve is connected at both ends, closed all around, and has a certain taper to ensure that the laser can pass smoothly and reach the surface of the workpiece.

[0003] However, this traditional copper sleeve structure has some problems: since the copper pressure head is an integral structure, its guide angle is limited, which makes it easy to cause unilateral side pressure when pressing before welding. This unilateral side pressure will cause the gap between the upper and lower materials (such as the sampling terminal and busbar in the battery module) to be too large, which is easy to cause welding defects.

[0004] Therefore, there is room for improvement in the welding pressure head. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the present invention aims to provide a nozzle piece of a welding pressure head tooling, wherein the nozzle piece has the ability to adaptively clamp a workpiece to be welded to improve the welding quality.

[0006] The second aspect of the present invention aims to provide a welding pressure head tool.

[0007] A third aspect of the present invention aims to provide a welding device.

[0008] According to the first aspect of the embodiment of the present invention, the nozzle piece of the welding pressure head tooling is provided with a welding channel, and an opening and a welding port connected to the welding channel are formed at both ends of the nozzle piece. The nozzle piece is used for docking the welding head at one end of the opening, and the nozzle piece is used for pressing on the workpiece to be welded at one end of the welding port; the nozzle piece includes at least two independently processed pressure dividing pieces, and the at least two pressure dividing pieces are distributed along the circumference of the welding channel.

[0009] According to the nozzle pressure piece of the embodiment of the present invention, a welding channel is provided, and the welding channel forms an opening and a welding port at both ends of the nozzle pressure piece. Among them, one end of the opening is designed to dock with the welding head to ensure that the laser or other welding energy can smoothly enter the welding channel. And one end of the welding port is used to fit tightly on the surface of the workpiece to be welded to achieve an effective welding operation. By providing circumferentially arranged and mutually independent pressure dividers, it is possible to more flexibly adapt to the surface shape and unevenness of the workpiece to be welded, thereby improving the welding quality.

[0010] According to some embodiments of the present invention, the pressure nozzle of the welding pressure head tooling has a spacing gap between two adjacent pressure dividing members.

[0011] According to the nozzle piece of the welding pressure head tooling of some embodiments of the present invention, the end surface of the pressure dividing piece provided with the welding opening is the pressure head end surface; and the pressure head end surface is arranged obliquely relative to the surface where the opening is located.

[0012] In some optional embodiments, there are two pressure dividers, and the pressure head end faces of the two pressure dividers are both inclined surfaces; and the distance between each pressure head end face and the surface where the opening is located gradually decreases in the direction toward the other pressure divider.

[0013] According to some embodiments of the present invention, the nozzle piece of the welding pressure head tooling is an insulating piece.

[0014] The welding ram tooling according to the second embodiment of the present invention comprises a mounting plate, a ram nozzle and an elastic member. A containing cavity is provided on the mounting plate, and a welding head docking interface and a ram nozzle outlet are provided on the mounting plate; the ram nozzle is the ram nozzle of the welding ram tooling according to the first embodiment of the present invention, and the end of the ram nozzle provided with the opening is located in the containing cavity, and the end of the ram nozzle provided with the welding port is assembled outside the containing cavity through the ram nozzle outlet; the elastic member is respectively connected to the mounting plate and the ram nozzle to push the end of the ram nozzle provided with the welding port close to or away from the ram nozzle outlet, and the elastic member is assembled on each of the pressure dividing members.

[0015] In some optional embodiments, the welding pressure head tooling also includes: a connecting rod, which is extended along the moving direction of the nozzle piece and is assembled on each of the pressure dividing pieces; one end of the connecting rod is fixedly connected to the mounting plate and one of the pressure dividing pieces, and the other end of the connecting rod is slidably connected to the mounting plate and the other of the pressure dividing pieces.

[0016] In some optional embodiments, the elastic member is a spring and is mounted on at least a portion of the connecting rod.

[0017] In some optional embodiments, at least part of the connecting rods are guide rods, at least one of the mounting plate and the pressure divider is provided with a guide hole, and the guide rods have the same cross-sectional shape as the guide hole.

[0018] In some optional embodiments, the mounting plate is an insulating member.

[0019] The welding equipment according to the third aspect of the present invention comprises the welding pressure head tooling according to the embodiment of the second aspect of the present invention, and also comprises a welding head, wherein the welding head welds the workpiece to be welded through the welding pressure head tooling.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 A three-dimensional diagram of a nozzle pressing member according to some embodiments of the present invention;

[0023] Figure 2 A side view of a nozzle pressing member according to some embodiments of the present invention;

[0024] Figure 3 It is a cross-sectional view of a nozzle pressing member of some embodiments of the present invention;

[0025] Figure 4 An exploded view of a welding head tooling according to some embodiments of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the welding pressure head tooling of some embodiments of the present invention;

[0027] Figure 6 for Figure 4 Cross-sectional view at AA in the middle.

[0028] Reference numerals:

[0029] Welding head tooling 100,

[0030] Mounting plate 10, accommodating cavity 11, welding head docking port 12, pressure head outlet 13, dust extraction cavity 14, dust extraction port 15,

[0031] The nozzle 20, the welding channel 21, the opening 22, the welding port 23, the pressure dividing member 24, the pressure head end face 241, the guide hole 242,

[0032] Elastic member 30, connecting rod 40, guide rod 41,

[0033] A workpiece 200 to be welded. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Reference below Figure 1 - Figure 2 The nozzle piece 20 of the welding pressure head tool according to the first embodiment of the present invention is described.

[0038] It is worth noting that the nozzle pressing piece 20 according to the embodiment of the present invention is applied to the field of welding. For example, in the production process of new energy vehicle battery modules, the nozzle pressing piece plays a certain role. Specifically, in the manufacturing process of the battery module, components such as the connecting piece, sampling terminal, and the total positive and negative lead-out aluminum bars need to be connected by laser welding technology. At this time, the nozzle pressing piece 20 is used to position and fix these parts to be welded to ensure that they maintain a stable position and posture during the welding process.

[0039] The present invention is described by taking the manufacturing process of the nozzle pressing member 20 applied to the battery module as an example, which will not be described in detail below.

[0040] like Figure 1As shown, a welding channel 21 is provided in the nozzle piece 20 according to an embodiment of the present invention, and an opening 22 and a welding port 23 connected to the welding channel 21 are formed at both ends of the nozzle piece 20. The nozzle piece 20 is used for butting the welding head at one end of the opening 22, and the nozzle piece 20 is used for pressing on the workpiece 200 to be welded at one end of the welding port 23. The nozzle piece 20 includes at least two independently processed pressure dividing pieces 24, and the at least two pressure dividing pieces 24 are distributed along the circumference of the welding channel 21.

[0041] According to the embodiment of the present invention, a welding channel 21 is provided inside the nozzle pressing member 20 , and an opening 22 and a welding port 23 are formed at two ends of the welding channel 21 .

[0042] The end of the opening 22 can be butted against the welding head to ensure effective transfer of welding energy, which can be laser, arc, etc.

[0043] The end of the welding port 23 is specifically used to fit tightly onto the surface of the workpiece 200 to be welded, thereby ensuring stability and accuracy during the welding process.

[0044] Optionally, the welding method may be laser welding, resistance welding or arc welding.

[0045] When the welding energy is laser, and the workpieces 200 to be welded are the sampling terminals and the busbar, the laser can reach the sampling terminals and the busbar at the welding opening 23 through the welding channel 21, thereby realizing non-contact welding. The welding channel 21 is laser.

[0046] Combination Figure 1 - Figure 2 The nozzle piece 20 includes at least two independent pressure dividing pieces 24 , and these pressure dividing pieces 24 are arranged along the circumference of the welding channel 21 .

[0047] In the process of pressing the workpiece 200 to be welded, each pressure dividing member 24 can function independently, thereby reducing or even avoiding interference between each other. This independent working mechanism enables the nozzle pressing member 20 to more accurately adapt to the shape and size of the workpiece 200 to be welded, especially for those thin materials with low gap compatibility (such as sampling terminals), the nozzle pressing member 20 can provide a more uniform and stable pressure distribution, making it easier to adaptively press the sampling terminals.

[0048] It is known that it is very important to achieve uniform pressure distribution during welding. This uniformity can not only effectively prevent deformation, cracks and other undesirable phenomena that may occur during welding, but also enhance the strength of the welded joint and the reliability of the structure. Especially in application scenarios such as new energy vehicle battery modules that require high precision and performance, the adaptive clamping ability of the nozzle piece 20 can ensure the stability and reliability of the welding quality, thereby improving the overall performance of the product.

[0049] In addition, the pressure dividers 24 are independent of each other, which is also convenient for subsequent maintenance and replacement. When a pressure divider 24 is worn or damaged, only the pressure divider 24 needs to be replaced, without replacing the nozzle member 20 as a whole, thereby reducing production costs and maintenance difficulty.

[0050] In some optional embodiments, at least two pressure dividers 24 are distributed symmetrically or asymmetrically around the welding channel 21 .

[0051] In some welding scenarios, especially when the shapes of the workpieces to be welded are regular and symmetrical, the symmetrical distribution of the pressure dividers 24 can ensure uniform transfer of welding energy and good fusion of the welded joints. The symmetrically distributed pressure dividers 24 can effectively control the thermal stress and deformation generated during the welding process, thereby improving the strength and stability of the welded joints. In addition, the symmetrically distributed design also facilitates the observation and operation of the welding operator, improving the convenience and safety of the welding process.

[0052] When the workpiece to be welded has an irregular shape or a special structure, the asymmetrical distribution of the pressure divider 24 can more flexibly adapt to the shape of the workpiece, ensuring a close fit and good fusion of the welding joint.

[0053] The asymmetric distribution design enables the welding head fixture 100 to be optimized for a specific workpiece shape, thereby improving the accuracy and efficiency of welding.

[0054] It should be noted that these optional embodiments do not impose specific restrictions on the distribution of the voltage divider 24. Whether symmetrical distribution or asymmetrical distribution, as long as it can meet the specific welding requirements and workpiece shape requirements, it is a feasible option.

[0055] According to some embodiments of the present invention, the nozzle piece 20 of the welding pressure head tool 100 is as follows: Figure 1 - Figure 2 As shown, there is a gap between two adjacent pressure dividing members 24 .

[0056] By setting the interval gap, each voltage divider 24 has a certain space to move when splitting, avoiding interference between two adjacent voltage dividers 24, and each voltage divider 24 moves more smoothly.

[0057] Optionally, the size and shape of the spacing gap can be adjusted according to the application scenario. For example, in laser welding, the size of the spacing gap can be adaptively adjusted according to the focus point and spot size of the laser beam to optimize the welding effect.

[0058] The interval gap between two adjacent pressure dividers 24 can also allow the heat and gas generated during the welding process to flow and escape smoothly, thereby avoiding welding defects caused by heat accumulation and gas retention.

[0059] In addition, during long-term use, the welding pressure head fixture 100 may need to be adjusted due to wear or deformation. The existence of the spacing gap makes the adjustment process more flexible and easy, and also facilitates the repair and replacement of damaged pressure dividing parts 24.

[0060] According to some embodiments of the present invention, the nozzle piece 20 of the welding pressure head tool 100 is as follows: Figure 2 As shown, the end surface of the pressure dividing member 24 provided with the welding opening 23 is a pressure head end surface 241. The pressure head end surface 241 is arranged to be inclined relative to the surface where the opening 22 is located.

[0061] This tilted design allows the welding head to contact the welding part at a more appropriate angle, making it suitable for welding workpieces with complex shapes and contours. Figure 2 By means of the inclined pressure head end face 241, the shape of the workpiece can be more flexibly adapted to ensure a close fit of the welding joint and reduce welding defects.

[0062] The inclined pressure head end face 241 also helps to better control the shape of the welding molten pool during the welding process, ensure that the welding energy is evenly distributed in the welding area, prevent local overheating and excessive melting, thereby forming a more uniform molten pool and improving the strength and stability of the weld joint.

[0063] In addition, the inclined pressure head end face 241 can adapt to different welding surface conditions, disperse the pressure by adjusting the contact angle, reduce the concentration of thermal stress caused by local overpressure, and thus reduce the risk of welding deformation. At the same time, it also helps to make the temperature gradient in the welding area more gentle, reduce the change of material properties caused by sudden temperature changes, thereby forming a welded joint with higher consistency and strength, and reducing welding defects.

[0064] In some optional embodiments, the inclination angles of the pressure head end faces 241 of each pressure dividing member 24 are different, so as to meet the welding requirements under different working conditions.

[0065] In some optional embodiments, such as Figure 2 As shown, there are two pressure dividers 24, and the pressure head end faces 241 of the two pressure dividers 24 are both inclined surfaces. In addition, the distance between each pressure head end face 241 and the surface where the opening 22 is located gradually decreases in the direction toward the other pressure divider 24.

[0066] In the above technical solution, the pressure head end faces 241 of the two pressure dividing members 24 are both inclined surfaces. This structure enables the welding head to contact the welding part at a more suitable angle during the welding process, especially when processing workpieces with complex shapes and contours, and can better adapt to the characteristics of the workpiece surface.

[0067] The distance between each pressure head end face 241 and the surface where the opening 22 is located gradually decreases in the direction toward the other pressure dividing member 24. This means that when the pressure dividing member 24 contacts the workpiece, the lower edge of the inclined surface will first contact the workpiece surface, and then as the pressure head continues to press, the upper edge of the inclined surface will gradually contact the workpiece, thereby forming a progressive pressing process.

[0068] According to some embodiments of the present invention, the nozzle piece 20 of the welding pressure head tool 100 is an insulating piece.

[0069] The nozzle pressing part 20 is an insulating part, which can avoid problems such as short circuit fire or overlapping arc caused by the metal pressing part during welding, thereby improving the reliability of welding, reducing the number of scraps and repairs caused by poor welding, and reducing production costs. At the same time, it also improves the safety of the welding process.

[0070] In some optional embodiments, the nozzle member 20 is made of an insulating and high temperature resistant material, such as a ceramic member or other similar materials. This is because the ceramic member can not only withstand high temperatures, but also effectively isolate the current, further ensuring the safety of the welding process.

[0071] like Figure 3 - Figure 6 As shown, the welding pressure head tool 100 according to the second embodiment of the present invention includes a mounting plate 10, a pressure nozzle 20 and an elastic member 30. Figure 3 - Figure 5 As shown, a housing cavity 11 is provided on the mounting plate 10, and a welding head docking port 12 and a pressure head outlet 13 communicating with the housing cavity 11 are provided on the mounting plate 10. The pressure nozzle piece 20 is a pressure nozzle piece 20 of a welding pressure head fixture 100 according to an embodiment of the first aspect of the present invention, and one end of the pressure nozzle piece 20 provided with an opening 22 is located in the housing cavity 11, and one end of the pressure nozzle piece 20 provided with a welding port 23 is assembled outside the housing cavity 11 through the pressure head outlet 13. The elastic member 30 is respectively connected to the mounting plate 10 and the pressure nozzle piece 20 to push one end of the pressure nozzle piece 20 provided with a welding port 23 to approach or move away from the pressure head outlet 13, and each pressure dividing member 24 is equipped with an elastic member 30.

[0072] In the above technical solution, the mounting plate 10 plays the role of supporting and fixing other components in the welding pressure head fixture 100. A receiving cavity 11 is formed inside the mounting plate 10, and the receiving cavity 11 is also provided with a welding head docking port 12 and a pressure head outlet 13 connected to the receiving cavity 11. The welding head docking port 12 is connected to the external welding equipment, so that the welding energy can be smoothly transmitted to the pressure head 20. The pressure head outlet 13 is a channel for the pressure head 20 to extend out of the receiving cavity 11 when performing welding operations, ensuring that the welding operation can be positioned on the workpiece 200 to be welded.

[0073] The nozzle piece 20 is an executive component in the welding ram tooling 100, which is directly involved in the welding process and is responsible for transferring the welding energy to the workpiece. According to an embodiment of the first aspect of the present invention, the nozzle piece 20 has a specific shape so that it can adapt to different welding requirements. An opening 22 is provided at one end of the nozzle piece 20, and this end is located in the accommodating cavity 11 of the mounting plate 10, which is convenient for connection and cooperation with internal components such as the elastic member 30. The other end of the nozzle piece 20 is a welding port 23 for directly contacting and welding the workpiece. At the ram outlet 13, the welding port 23 of the nozzle piece 20 can be flexibly extended or retracted to adapt to workpieces of different sizes and shapes, while ensuring the accuracy and stability of welding.

[0074] like Figure 3 As shown, the elastic member 30 is arranged in the welding pressure head fixture 100 to achieve pressure adjustment and dynamic response. The elastic member 30 is connected between the mounting plate 10 and the pressure nozzle member 20, and plays a spring-like pushing role. This arrangement allows the pressure nozzle member 20 to automatically adjust the position of its welding port 23 end according to actual needs during the welding process, that is, the pressure size, the unevenness of the workpiece surface, etc., to achieve flexible movement close to or away from the pressure head outlet 13.

[0075] Each pressure dividing member 24 is equipped with an elastic member 30. The presence of the elastic member 30 ensures that during the welding process, even if the surface of the workpiece 200 to be welded is uneven or has local differences, each pressure dividing member 24 can independently adjust its pressure on the workpiece surface, thereby achieving adaptive pressure distribution.

[0076] Moreover, each pressure dividing member 24 can be adjusted according to the surface condition of the workpiece it contacts without affecting each other, thereby enhancing the flexibility and adaptability of the welding pressure head tooling 100.

[0077] However, during the use of the welding pressure head, there may be a problem of positional displacement of the pressure dividing member 24 due to uneven pressure distribution or mechanical movement.

[0078] In order to improve this problem, some Figure 4 - Figure 5 In the embodiment of the present invention, the welding pressure head tool 100 further includes: a connecting rod 40. The connecting rod 40 is extended along the moving direction of the pressure nozzle 20, and each pressure dividing member 24 is equipped with a connecting rod 40. One end of the connecting rod 40 is fixedly connected to one of the mounting plate 10 and the pressure dividing member 24, and the other end of the connecting rod 40 is slidably connected to the other of the mounting plate 10 and the pressure dividing member 24.

[0079] This arrangement allows the connecting rod 40 to act as a physical connector to ensure the connection between the pressure divider 24 and the mounting plate 10, and the sliding connection allows the pressure divider 24 to move on a predetermined path without causing unnecessary deviations due to mechanical movement or external factors.

[0080] The connecting rod 40 not only provides a physical connection, but also has a guiding function. During the welding process, when the nozzle 20 moves along a preset trajectory, the connecting rod 40 can ensure that the pressure divider 24 maintains the correct direction and position. By limiting the movement of the pressure divider 24 in directions other than the movement direction of the nozzle 20, the connecting rod 40 effectively prevents the deflection or shaking of the pressure divider 24. This precise guiding function can not only improve the uniformity and controllability of the welding pressure, but also enhance the stability and consistency of the welded joint.

[0081] In some optional embodiments, such as Figure 4 As shown, the elastic member 30 is a spring and is mounted on at least a portion of the connecting rod 40 .

[0082] The spring as the elastic member 30 can provide continuous and adjustable elastic pressure to ensure uniform distribution of pressure in the welding area. When the welding pressure head applies pressure, the spring can absorb and disperse part of the impact force, thereby protecting the workpiece 200 to be welded from damage that may be caused by excessive pressure. At the same time, the elastic restoring force of the spring can also help the pressure divider 24 to quickly return to its initial position after welding is completed, so as to prepare for the next welding operation, thereby improving production efficiency.

[0083] The spring is wrapped around the connecting rod 40, which can also provide additional support and fixation for the connecting rod 40, effectively preventing the connecting rod 40 from loosening or falling off during operation. On the other hand, the elastic characteristics of the spring can also compensate for the length change of the connecting rod 40 caused by mechanical movement or temperature change to a certain extent, thereby ensuring that the pressure divider 24 always maintains the correct position and posture, thereby improving the stability and reliability of welding and helping to improve the welding quality.

[0084] In some optional embodiments, such as Figure 4 As shown, at least part of the connecting rod 40 is a guide rod 41 , and at least one of the mounting plate 10 and the pressure dividing member 24 is provided with a guide hole 242 , and the cross-sectional shape of the guide rod 41 and the guide hole 242 is the same.

[0085] This arrangement can ensure that during the welding process, multiple components can maintain accurate relative positions and the motion trajectory can be effectively controlled. The matching of the guide rod 41 and the guide hole 242 can prevent the components from shaking or deviating from the preset path when external force is applied, thereby ensuring the stability of the welding process and the consistency of the welding quality.

[0086] When the welding head fixture 100 is in working state, the guide hole 242 will slide on the guide rod 41. At the same time, the elastic member 30 in the welding head fixture 100 will apply a certain thrust to the pressure dividing member 24, so that it can be closely contacted with the surface of the workpiece 200 to be welded. This can not only ensure the uniform distribution of welding pressure, but also improve the quality of the welded joint, making it more solid and consistent.

[0087] Optionally, each pressure dividing member 24 corresponds to two guide rods 41, and the two guide rods 41 are arranged opposite to each other. Through the mutual cooperation of the two guide rods 41, the stability and guiding accuracy of the pressure dividing member 24 during operation are enhanced, so that the movement of the pressure dividing member 24 is smoother and the unstable factors in the movement process are reduced.

[0088] In some optional embodiments, one end of the connecting rod 40 is fixedly connected to the mounting plate 10, and the other end of the connecting rod 40 is slidably connected to the pressure divider 24. The mounting plate 10 provides a stable support surface to ensure the stability of the entire tooling during operation. The other end of the connecting rod 40 is slidably connected to the pressure divider 24. The design of this sliding connection allows the pressure divider 24 to be fine-tuned relative to the mounting plate 10 within a certain range to accommodate workpieces 200 to be welded of different shapes and sizes. This flexibility can improve the accuracy of welding and also enable the tooling to be applicable to a wider range of welding scenarios. At the same time, the sliding connection can also absorb the vibration and impact force generated during the welding process to a certain extent, protecting the welding head and the workpiece from damage.

[0089] Alternatively, one end of the connecting rod 40 is fixedly connected to the pressure divider 24, and the other end is slidably connected to the mounting plate 10. This means that a fixed connection point is formed between the pressure divider 24 and the connecting rod 40, ensuring the accurate transmission of pressure during welding. The other end of the connecting rod 40 is designed to be connected to the mounting plate 10 in a sliding manner. This design allows the pressure divider 24 to maintain close contact with the workpiece while making slight position adjustments based on welding requirements. This adaptive adjustment capability can improve the accuracy and flexibility of welding when processing workpieces of complex shapes, and ensure the consistency and reliability of welding quality. Secondly, the sliding connection can also reduce the friction and wear generated during the welding process to a certain extent, thereby extending the service life of the tooling.

[0090] Optionally, the cross-sectional shape of the guide rod 41 and the guide hole 242 can be set according to specific application requirements, and can be either a simple circle or a polygon or other non-circular complex geometric shape. Different cross-sectional shapes can provide different degrees of guiding performance and anti-rotation ability. The cross-sectional shape can be selected according to the specific usage scenario and precision requirements. There is no limitation here.

[0091] In some optional embodiments, the guide rod 41 includes an external thread section, and one of the mounting plate 10 or the pressure divider 24 is provided with an internal thread hole, wherein the external thread is adapted to the internal thread. This design utilizes the principle of threaded connection so that the guide rod 41 can be fixed to the mounting plate 10 or the pressure divider 24.

[0092] In some optional embodiments, the mounting plate 10 is an insulating member.

[0093] This is to meet some specific electrical isolation requirements, especially in situations where electrical welding may be involved or current leakage needs to be prevented. The mounting plate 10 is an insulating member that can effectively block the current path.

[0094] When the welding head tool 100 is used for electrical welding, the mounting plate 10 using the insulating member can effectively prevent the current from being conducted from the welding device to other parts that do not need to be energized, thereby avoiding the occurrence of short circuits or other electrical faults.

[0095] The insulating mounting plate 10 can also provide additional safety protection measures to prevent operators from accidentally contacting live parts, reduce the risk of electric shock, and ensure production safety.

[0096] Moreover, the mounting plate 10 is an insulating member, which can also reduce corrosion or other damages caused by current leakage, thereby extending the service life of the welding head tool 100.

[0097] In some optional embodiments, such as Figure 4 - Figure 6 As shown, a dust extraction cavity 14 is further provided in the mounting plate 10 , and a dust extraction port 15 for connecting the dust extraction cavity 14 and the accommodating cavity 11 is further provided in the mounting plate 10 .

[0098] Specifically, before or during the welding operation, an inert shielding gas such as helium, argon, etc. can be introduced into the accommodating chamber 11. These shielding gases can not only form a protective layer during the welding process, effectively isolating oxygen, nitrogen and other elements in the air that may have an adverse effect on the quality of the weld, but also use their flow characteristics to help further drive the dust and tiny particles around the welding point and discharge them through the dust extraction cavity 14 and the dust extraction port 15. The synergistic effect of the shielding gas flow and the dust extraction system can effectively improve the cleanliness of the welding area and reduce welding defects caused by dust and impurities, such as pores and inclusions, thereby ensuring the stability and reliability of the welding quality.

[0099] The welding equipment according to the third aspect of the present invention comprises the welding head fixture 100 according to the embodiment of the second aspect of the present invention, and also comprises a welding head, and the welding head welds the workpiece 200 to be welded through the welding head fixture 100.

[0100] By using the welding pressure head revolution of the second embodiment of the present invention, the uniform application of pressure, precise control of position, and smooth movement during welding are ensured, providing a certain basis for efficient welding of the welding head.

[0101] The welding head achieves close and stable contact with the workpiece 200 to be welded through the welding head fixture 100. During the welding operation, the welding head performs welding operations on the workpiece 200 to be welded according to preset welding parameters, including welding current, voltage, and welding speed, so as to ensure that a firm and reliable connection can be formed between two or more workpieces.

[0102] Reference below Figure 1 - Figure 6 The welding pressure head tool 100 according to the embodiment of the present invention is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the invention.

[0103] Reference Figure 3 The welding pressure head tool 100 includes: a mounting plate 10, a pressure nozzle piece 20, an elastic piece 30 and a connecting rod 40.

[0104] Reference Figure 4 The mounting plate 10 is provided with an accommodating cavity 11 , and the mounting plate 10 is provided with a welding head docking port 12 and a pressure head outlet 13 communicating with the accommodating cavity 11 .

[0105] Reference Figure 1 - Figure 3 A welding channel 21 is provided in the nozzle pressing piece 20, and an opening 22 and a welding port 23 connected to the welding channel 21 are formed at both ends of the nozzle pressing piece 20. The nozzle pressing piece 20 is used for butt welding head at one end of the opening 22, and is used for pressing on the workpiece 200 to be welded at one end of the welding port 23.

[0106] The nozzle member 20 includes two independently processed pressure dividing members 24, and the two pressure dividing members 24 are distributed along the circumference of the welding channel 21. There is a gap between the two pressure dividing members 24.

[0107] The end surface of the pressure dividing member 24 provided with the welding opening 23 is a pressure head end surface 241. The pressure head end surface 241 is arranged to be inclined relative to the surface where the opening 22 is located.

[0108] There are two pressure dividing members 24, and the pressure head end faces 241 of the two pressure dividing members 24 are both inclined surfaces. The distance between each pressure head end face 241 and the surface where the opening 22 is located gradually decreases in the direction toward the other pressure dividing member 24.

[0109] The nozzle pressing member 20 is an insulating member.

[0110] One end of the nozzle pressing member 20 with an opening 22 is located in the accommodating chamber 11 , and one end of the nozzle pressing member 20 with a welding opening 23 is assembled outside the accommodating chamber 11 through the pressure head outlet 13 .

[0111] Reference Figure 3 - Figure 4 The elastic member 30 is respectively connected to the mounting plate 10 and the nozzle member 20 to push the end of the nozzle member 20 with the welding opening 23 to approach or move away from the pressure head outlet 13, and each pressure dividing member 24 is equipped with an elastic member 30.

[0112] The elastic member 30 is a spring and is mounted on at least a portion of the connecting rod 40 .

[0113] The connecting rod 40 is extended along the moving direction of the nozzle pressing member 20 , and each pressure dividing member 24 is equipped with a connecting rod 40 .

[0114] One end of the connecting rod 40 is fixedly connected to the mounting plate 10 , and the other end of the connecting rod 40 is slidably connected to the pressure dividing member 24 .

[0115] A portion of the connecting rod 40 is a guide rod 41 . A guide hole 242 is provided on the pressure dividing member 24 . The cross-sectional shape of the guide rod 41 is the same as that of the guide hole 242 .

[0116] The mounting plate 10 is an insulating member.

[0117] Reference Figure 4 , Figure 6 A dust extraction cavity 14 is also provided in the mounting plate 10 , and a dust extraction port 15 for connecting the dust extraction cavity 14 and the accommodating cavity 11 is also provided in the mounting plate 10 .

[0118] Other components of the welding pressure head tool 100 according to the embodiment of the present invention, such as welding equipment and operations, are known to ordinary technicians in the field and will not be described in detail here.

[0119] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0120] Although embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A nozzle piece of a welding pressure head tooling, characterized in that: A welding channel is provided in the pressure nozzle, and an opening and a welding port communicating with the welding channel are formed at both ends of the pressure nozzle. The pressure nozzle is used for butting the welding head at one end of the opening, and is used for pressing on the workpiece to be welded at one end of the welding port; The pressure nozzle comprises at least two independently processed pressure dividing pieces, and the at least two pressure dividing pieces are distributed along the circumference of the welding channel.

2. The nozzle piece of the welding pressure head tooling according to claim 1 is characterized in that: There is a gap between two adjacent pressure dividing members.

3. The nozzle piece of the welding pressure head tooling according to claim 1 is characterized in that: The end surface of the pressure dividing member provided with the welding opening is the pressure head end surface; The end surface of the pressure head is inclined relative to the surface where the opening is located.

4. The nozzle piece of the welding pressure head tooling according to claim 3 is characterized in that: There are two pressure dividers, and the pressure head end surfaces of the two pressure dividers are both inclined surfaces; Furthermore, the distance between the end surface of each pressure head and the surface where the opening is located gradually decreases in the direction toward the other pressure dividing member.

5. The nozzle piece of the welding pressure head tooling according to any one of claims 1 to 4, characterized in that: The nozzle pressing piece is an insulating piece.

6. A welding head tool, characterized in that: include: A mounting plate, wherein a receiving cavity is provided on the mounting plate, and a welding head docking port and a pressure head outlet communicating with the receiving cavity are provided on the mounting plate; A nozzle piece, wherein the nozzle piece is a nozzle piece of a welding pressure head tooling according to any one of claims 1 to 5, wherein one end of the nozzle piece provided with the opening is located in the accommodating cavity, and one end of the nozzle piece provided with the welding port is assembled outside the accommodating cavity through the pressure head outlet; An elastic member is respectively connected to the mounting plate and the nozzle member to push the end of the nozzle member provided with the welding port to be close to or away from the pressure head outlet, and each of the pressure dividing members is equipped with the elastic member.

7. The welding head tooling according to claim 6, characterized in that: Also includes: A connecting rod, the connecting rod is extended along the moving direction of the nozzle pressing member, and each of the pressure dividing members is equipped with the connecting rod; One end of the connecting rod is fixedly connected to one of the mounting plate and the pressure dividing member, and the other end of the connecting rod is slidably connected to the other of the mounting plate and the pressure dividing member.

8. The welding head tooling according to claim 7, characterized in that: The elastic member is a spring and is sheathed on at least a portion of the connecting rod.

9. The welding head tooling according to claim 7, characterized in that: At least part of the connecting rods are guide rods, at least one of the mounting plate and the pressure dividing member is provided with a guide hole, and the guide rods and the guide holes have the same cross-sectional shape.

10. The welding head tooling according to claim 6, characterized in that: The mounting plate is an insulating member.

11. A welding device, characterized in that: It comprises the welding pressure head tooling as described in any one of claims 6 to 10, and also comprises a welding head, and the welding head welds the workpiece to be welded through the welding pressure head tooling.

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