Welding pressure head tool and welding equipment with same

Abstract

The utility model discloses a welding pressure head tool and welding equipment with the same, and belongs to the field of welding equipment. The welding pressure head tool comprises a tool body provided with a containing cavity, a first welding head opening and a pressure head outlet; the pressure nozzle piece is provided with a welding channel, a welding head second opening and a welding opening, the welding head second opening and the welding head first opening are arranged corresponding to the welding head, and the welding opening is arranged corresponding to the pressure head outlet so as to be pressed on a workpiece to be welded; the elastic piece is used for pushing the end, provided with the welding opening, of the pressing nozzle piece to be close to or away from the pressing head outlet. The nozzle pressing piece is provided with a stopping part which is located in the containing cavity and movably connected to the tool body. According to the welding pressure head tool, the pressure nozzle piece is clamped on the tool body through the stop part, and the containing cavity limits the moving range of the pressure nozzle piece relative to the tool body. A guide screw does not need to be connected between the pressure nozzle piece and the tool body, so that the assembly and maintenance convenience of the welding pressure head tool is improved, and the risk that the pressure nozzle piece falls off and is damaged due to loosening of the screw is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a welding pressure head tool and welding equipment with the same. Background Art

[0002] In modern production systems, welding technology is used in many products.

[0003] Taking the laser welding of battery tabs as an example, during welding, the tab welding head is usually pressed on the tab, and then the welding head of the welding gun is directed at the tab to emit the laser. The reason why the welding head can press the tab without damaging it is that the pressure nozzle is installed on the body after the spring is put on the screw, the pressure nozzle can move along the screw, and the setting of the spring makes the clamping force elastically adjustable.

[0004] The setting of the screw makes the tooling of the welding pressure head more complicated, and in order to prevent the pressure nozzle from falling off after being used for a period of time, the screw needs to be tightened regularly, which makes maintenance more troublesome. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a welding pressure head tooling for easy assembly and maintenance.

[0006] The utility model also aims to provide a welding device with the welding pressure head tooling.

[0007] According to the embodiment of the utility model, the welding ram tooling includes: a tooling body, a accommodating cavity is provided on the tooling body, a first welding ram opening and a ram outlet connected to the accommodating cavity are formed on the tooling body; a nozzle piece, a stopper is provided on the nozzle piece and is located in the accommodating cavity, a projection of the stopper on the surface where the ram outlet is located is at least partially located outside the ram outlet, the nozzle piece is movably connected to the tooling body through the stopper, a welding channel is provided in the nozzle piece, a second welding ram opening and a welding port connected to the welding channel are formed on the nozzle piece, the second welding ram opening and the first welding ram opening are used to correspond to the welding ram settings, and the welding port is set corresponding to the ram outlet to press on the workpiece to be welded; an elastic piece, the elastic piece is respectively connected to the tooling body and the nozzle piece to push the end of the nozzle piece provided with the welding port to approach or move away from the ram outlet.

[0008] According to the welding pressure head fixture of the embodiment of the utility model, the nozzle piece is restricted on the fixture body by the stopper, and the nozzle piece cannot be separated from the fixture body from the pressure head outlet during welding. The accommodating cavity also limits the movement range of the nozzle piece relative to the fixture body. As a result, there is no need to connect the nozzle piece and the fixture body with a guide screw, and there is no need to tighten the screws from time to time to prevent loosening during subsequent maintenance. In this way, the convenience of assembly and maintenance of the welding pressure head fixture is improved, and the risk of the nozzle piece falling off and being damaged due to loose screws is reduced.

[0009] In some embodiments, the elastic member is located in the accommodating cavity, so as to facilitate the positioning and limiting of the elastic member and reduce the risk of losing the elastic member.

[0010] Specifically, the elastic member is located on a side of the stopper away from the pressure head outlet, one end of the elastic member abuts against the stopper and the other end abuts against the tool body. In this way, the stopper is dual-purpose, reducing the setting of additional protruding structures, which is conducive to reducing the structural size.

[0011] Furthermore, a positioning groove is provided on the stopper, and one end of the elastic member fits in the positioning groove, thereby limiting the shaking of the elastic member and improving the working stability of the elastic member.

[0012] In some embodiments, the tool body includes a main body and a pressure plate connected to each other; the accommodating cavity includes a main body cavity formed on the main body and a pressure plate cavity formed on the pressure plate; the main body cavity is connected to the pressure plate cavity; the pressure head outlet is located at one end of the main body cavity away from the pressure plate; the welding head first opening is located at one end of the pressure plate cavity away from the main body; the stopper is clamped between the pressure plate and the main body. In this way, it is convenient to assemble and further limits the nozzle from coming out.

[0013] Specifically, the nozzle piece is a tube body and includes a first tube segment, a second tube segment and a third tube segment arranged in sequence along its length direction, the outer periphery of the first tube segment protrudes from the outer periphery of the second tube segment, and the protruding part forms the stopper; the main body cavity includes: a stepped first sub-cavity and a second sub-cavity, the first sub-cavity is used to accommodate the first tube segment, the second sub-cavity is used to accommodate the second tube segment, the end of the second sub-cavity away from the first sub-cavity is the pressure head outlet, and the third tube segment is located outside the pressure head outlet; a stepped surface is formed between the first sub-cavity and the second sub-cavity, and the stepped surface is used to support the stopper.

[0014] In some embodiments, the tool body and the nozzle piece are provided with a gas channel and a dust removal channel, the gas channel and the dust removal channel are respectively connected to the welding channel, the gas channel is used to pass the protective gas, and the dust removal channel is used to remove dust, so as to improve the welding effect.

[0015] Specifically, the gas channel is formed on the tool body, and the gas channel forms a gas outlet on the inner surface of the accommodating cavity; the side wall of the nozzle pressing member is provided with a gas hole penetrating the welding channel. In this way, the shielding gas can be effectively distributed to the welding position, and the use of shielding gas can be saved, thereby reducing the waste of shielding gas.

[0016] Furthermore, a guide groove is provided on the outer surface of the nozzle piece, the gas outlet is arranged opposite to the guide groove, one end of the air hole is connected to the guide groove, and the other end is connected to the welding channel. In this way, the turbulence caused by the air flow disturbance is reduced, which is conducive to the shielding gas to flow to the air hole quickly and evenly and be distributed to the welding channel.

[0017] The welding equipment according to the embodiment of the utility model comprises the welding pressure head tooling of the above embodiment and also comprises a welding head. The welding head welds the workpiece to be welded through the welding pressure head tooling.

[0018] According to the welding equipment of the embodiment of the utility model, by setting the above-mentioned welding pressure head tooling, the guidance and anti-loosening of the pressure nozzle piece are achieved by utilizing the cooperation between the pressure nozzle piece and the tooling body, and the flexible contact between the pressure nozzle piece and the workpiece to be welded is not affected, which can reduce the damage to the workpiece to be welded.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1 is a schematic diagram of the assembly of a welding head tooling and a workpiece to be welded at a viewing angle in some embodiments;

[0022] Figure 2 is a schematic diagram of the assembly of a welding head tooling and a workpiece to be welded from another perspective in some embodiments;

[0023] Figure 3 is a stereogram of a main body member in some embodiments;

[0024] Figure 4 is a schematic diagram of the assembly of the pressing plate, the joint and the connecting block in some embodiments;

[0025] Figure 5 is a schematic diagram of the assembly of a pressing plate and a joint, a connecting block, a first dust suction pipe, a second dust suction pipe, and an extension pipe in some embodiments;

[0026] Figure 6 is a schematic diagram of the assembly positions of the first dust suction pipe, the second dust suction pipe, and the extension pipe in some embodiments;

[0027] Figure 7 is a perspective view of a nozzle pressing member in some embodiments;

[0028] Figure 8 is another perspective view of the mouthpiece of some embodiments;

[0029] Fig. 9 2 is a cross-sectional view of a nozzle press member in some embodiments.

[0030] Reference numerals:

[0031] Welding head tooling 100, workpiece to be welded 200;

[0032] Tool body 1;

[0033] Accommodating cavity V10, main cavity V11, first sub-cavity V111, second sub-cavity V112, pressing plate cavity V12;

[0034] The welding head first opening 101, the pressure head outlet 102, the gas outlet 103, the gas inlet 104, the dust removal inlet 105, the dust removal outlet 106, the second connecting hole 107, and the mounting port 108;

[0035] Main body 11;

[0036] Pressing plate 12;

[0037] Stopper 13, positioning groove 131;

[0038] Epitaxial tube 14;

[0039] The nozzle piece 3, the second opening 301 of the welding head, the welding port 302, the air hole 303, and the dust removal hole 304;

[0040] A first pipe section 31, a second pipe section 32, a third pipe section 33, a guide groove 34, a main line groove 341, and a buffer groove 342;

[0041] Welding channel V20;

[0042] Gas channel V30, gas buffer chamber V31;

[0043] Dust removal channel V40, dust removal buffer chamber V41;

[0044] Elastic member 5;

[0045] A first dust suction pipe 61 and a second dust suction pipe 62;

[0046] Connector 7 , connecting block 8 , first connecting hole 81 . DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments 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.

[0048] In the description of the present utility model, it is necessary to understand that the terms "center", "length", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. 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 utility model, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.

[0050] Reference below Figure 1-Figure 9 A welding head tool 100 according to an embodiment of the present invention is described.

[0051] See also Figure 1 and Figure 2 According to the embodiment of the present invention, the welding pressure head tool 100 comprises: a tool body 1, a pressure nozzle 3 and Figure 7 The elastic member 5 is shown.

[0052] The tool body 1 includes a main body 11 and a pressure plate 12 connected in the up-down direction. The main body 11 is connected to the bottom of the pressure plate 12. The main body 11 and the pressure plate 12 are provided with threaded holes around them, and the two are fixedly connected by bolts. Of course, the main body 11 and the pressure plate 12 can be fixed by other means than bolts. The two can also be fixedly connected by welding or other methods after assembly. Alternatively, the main body 11 and the pressure plate 12 are integrally formed parts, and the two do not need to be processed independently or connected by bolts.

[0053] See also Figure 3 and Figure 4 , a housing cavity V10 is provided on the tool body 1, and a welding head first opening 101 and a pressure head outlet 102 communicating with the housing cavity V10 are formed on the tool body 1. Specifically, the housing cavity V10 includes a main body cavity V11 formed on the main body 11 and a pressure plate cavity V12 formed on the pressure plate 12. On the connecting surface of the main body 11 and the pressure plate 12, the main body cavity V11 is connected with the pressure plate cavity V12, and the welding head first opening 101 is located at one end of the pressure plate cavity V12 away from the main body 11, and the pressure head outlet 102 is located at one end of the main body cavity V11 away from the pressure plate 12, that is, Figure 3 and Figure 4 Taking the illustrated example as an example, the welding head first opening 101 is an upper opening connected to the accommodating cavity V10 , and the pressure head outlet 102 is a lower opening connected to the accommodating cavity V10 .

[0054] See also Figure 7 and Figure 8 The nozzle piece 3 is provided with a stopper 13 located in the accommodating cavity V10. The stopper 13 can be limited between the pressure plate 12 and the main body 11. The nozzle piece 3 is movably connected to the tool body 1 through the stopper 13. The nozzle piece 3 is provided with a welding channel V20. The nozzle piece 3 is formed with a second welding head opening 301 and a welding port 302 connected to the welding channel V20. Figure 7 and Figure 8 Taking the example shown as an example, the second opening 301 of the welding head is the upper opening connected to the welding channel V20, and the welding opening 302 is the lower opening connected to the welding channel V20. The second opening 301 of the welding head is located between the first opening 101 of the welding head and the pressure head outlet 102. The second opening 301 of the welding head and the first opening 101 of the welding head are used for corresponding welding head settings, and the welding opening 302 is set corresponding to the pressure head outlet 102 to press on the workpiece 200 to be welded.

[0055] See also Figure 7 and Fig. 9 The elastic member 5 is located in the accommodating cavity V10, and the elastic member 5 is respectively connected to the tooling body 1 and the nozzle member 3. When the nozzle member 3 is movably connected to the tooling body 1, the elastic member 5 can adjust the distance between the nozzle member 3 and the tooling body 1 to push the end of the nozzle member 3 provided with the welding port 302 to be close to or away from the pressure head outlet 102.

[0056] Before welding, the welding pressure head tool 100 is pressed on the workpiece 200 to be welded through the pressure nozzle 3, one end of the pressure nozzle 3 is a welding port 302, and the edge of the pressure nozzle 3 at the welding port 302 surrounds the periphery of the welding position and presses on the workpiece 200 to be welded. Since the elastic member 5 is respectively connected to the tool body 1 and the pressure nozzle 3, the pressing force between the pressure nozzle 3 and the workpiece 200 to be welded is an elastic adjustable force, which prevents the pressure nozzle 3 from hard contact with the workpiece 200 to be welded and causing damage to the workpiece 200 to be welded.

[0057] The welding head first opening 101 of the tool body 1 and the welding head second opening 301 of the nozzle member 3 correspond to the welding head setting of the welding gun. According to different welding types, the welding head can extend into the welding channel V20 of the nozzle member 3 through the welding head first opening 101 and the welding head second opening 301, and the welding head outputs energy to the welding position of the workpiece 200 to be welded. Alternatively, the welding head is located outside the welding pressure head tool 100, and the welding head transmits energy into the welding channel V20 of the nozzle member 3 through the welding head first opening 101 and the welding head second opening 301, and reaches the welding position of the workpiece 200 to be welded for welding.

[0058] It should be noted that the type of welding gun is not limited in the present application, and it can be a laser welding gun or other types of welding guns, as long as the welding pressure head tooling 100 of the present application can be applied.

[0059] In the embodiment of the utility model, the nozzle pressing member 3 is provided with a stopper 13 located in the accommodating cavity V10. A structural form of the stopper 13 is as follows: Figure 7-Figure 9 The nozzle piece 3 is a tube body that passes through the welding channel V20, including a first tube section 31, a second tube section 32 and a third tube section 33 that are sequentially arranged along the length direction (i.e., the up-down direction in the figure), and the outer periphery of the first tube section 31 protrudes from the outer periphery of the second tube section 32, and the protruding part forms a stopper 13.

[0060] like Figure 3 As shown, on the connecting surface of the main body 11 and the pressure plate 12, the main body 11 is recessed downward to form a stepped through hole, and the stepped through hole constitutes the first sub-cavity V111 and the second sub-cavity V112 downward in sequence from the main cavity V11, the outer peripheral surface of the first sub-cavity V111 is larger than the outer peripheral surface of the second sub-cavity V112, and a stepped surface is formed between the first sub-cavity V111 and the second sub-cavity V112, and the first sub-cavity V111 is used to accommodate the first pipe section 31, and the stepped surface formed by the first sub-cavity V111 and the second sub-cavity V112 carries the stopper 13, which further fixes the pressure plate 12 to the main body 11, so that the nozzle piece 3 will be stuck between the pressure plate 12 and the main body 11, thereby realizing the movable connection between the nozzle piece 3 and the tooling body 1. In addition, the second sub-cavity V112 is used to accommodate the second pipe segment 32 , and one end of the second sub-cavity V112 away from the first sub-cavity V111 is the pressure head outlet 102 , and the third pipe segment 33 is located outside the pressure head outlet 102 .

[0061] As can be seen from the above, the projection of the stopper 13 on the surface where the pressure head outlet 102 is located is at least partially located outside the pressure head outlet 102, that is, the pressure nozzle 3 is stuck on the tool body 1 through the stopper 13, and the pressure nozzle 3 cannot escape from the tool body 1 from the pressure head outlet 102 during welding. Limited by the size of the accommodating cavity V10, the pressure nozzle 3 is stuck on the tool body 1, and is partially sleeved in the accommodating cavity V10, and the relative movement range of the tool body 1 is also limited. In this way, not only the welding accuracy of the welding pressure head tool 100 is improved, but also the structure of the pressure nozzle 3 and the tool body 1 is simple, the connection between the two is reliable, and it is also convenient for the maintenance and replacement of the welding pressure head tool 100.

[0062] With such a configuration, there is no need to connect the guide screws between the nozzle piece 3 and the tool body 1, and there is no need to tighten the screws to prevent them from loosening during later maintenance. In this way, the assembly and maintenance convenience of the welding pressure head tool 100 is improved, and the risk of the nozzle piece 3 falling off and being damaged due to the loosening of the screws is reduced.

[0063] In some embodiments, the elastic member 5 is located in the accommodating cavity V10. Further, the elastic member 5 may be located in the first sub-cavity V111. In this way, the elastic member 5 is confined in the accommodating cavity V10, which facilitates positioning and confining the elastic member 5 and reduces the risk of losing the elastic member 5.

[0064] Of course, in other embodiments of the present application, the elastic member 5 may also be arranged outside the accommodating cavity V10. For example, a mounting protrusion is provided on the portion of the nozzle member 3 extending out of the pressure head outlet 102, and the elastic member 5 may be clamped between the mounting protrusion and the tooling body 1.

[0065] Specifically, the elastic member 5 is located on the side of the stopper 13 away from the pressure head outlet 102, one end of the elastic member 5 abuts on the stopper 13, and the other end abuts on the pressure plate 12 of the tool body 1. Here, the stopper 13 is used to abut the elastic member 5, and the stopper 13 has two uses, not only for clamping and connecting with the tool body 1, but also for setting the elastic member 5, thereby reducing the setting of additional protrusions and other mounting structures on the pressure nozzle 3 or the tool body 1, which is conducive to reducing the structural size.

[0066] Furthermore, if Figure 7 , Fig. 9 As shown, a positioning groove 131 is provided on the stopper 13, one end of the elastic member 5 is fitted in the positioning groove 131, and the other end extends out of the positioning groove 131. In this way, the shaking of the elastic member 5 is limited, and the working stability of the elastic member 5 is improved.

[0067] Here, the type of the elastic member 5 is not limited, and it can be an elastic block or a piston member, etc. Figure 7In the illustrated embodiment, the elastic member 5 is a spring, and is a cylindrical spring, which is not only low in cost and small in size, but also has long-lasting and stable elasticity.

[0068] Specifically, the shape of the positioning groove 131 is consistent with the shape of the elastic member 5 .

[0069] Furthermore, if Figure 7 As shown, the stopper 13 is annular and arranged around the welding channel V20, and the elastic member 5 is multiple and arranged at intervals around the welding channel V20.

[0070] It can be understood that, through the cooperation between the stopper 13 and the accommodating cavity V10, the stopper 13 is equivalent to the guide block of the nozzle pressing member 3. The stopper 13 is arranged in a ring shape around the welding channel V20, and forms a ring-shaped guide surface with the inner wall surface of the accommodating cavity V10, which is conducive to improving the guiding stability. The elastic member 5 is arranged in multiple and spaced around the welding channel V20, which is conducive to improving the uniformity of the elastic force distribution on the nozzle pressing member 3.

[0071] Of course, in the solution of the present application, the stop portion 13 may also be a plurality of discretely distributed stop blocks, and at least two of the stop blocks are connected to the elastic member 5 .

[0072] like Figure 3 As shown, the end of the main body cavity V11 connected to the pressure plate cavity V12 is formed with an installation opening 108, which is the upper opening of the first sub-cavity V111. On the connecting surface of the main body 11 and the pressure plate 12, the positive projection of the stopper 13 from top to bottom is completely located in the installation opening 108. In this way, the outer periphery of the stopper 13 is completely contained in the first sub-cavity V111, so that the nozzle member 3 can be installed in the main body 11 from the installation opening 108. It should be noted that, at the same time, refer to Figure 7 and Figure 8 The thickness of the stopper 13 is smaller than the depth of the first sub-cavity V111, that is, the length of the first tube segment 31 is smaller than the depth of the first sub-cavity V111. Thus, in the first sub-cavity V111, not only is there reserved space for the elastic member 5 extending out of the positioning groove 131 to deform up and down, but also when the elastic member 5 is elastically deformed, the nozzle pressing member 3 can also move up and down in the first sub-cavity V111. The structures of the nozzle pressing member 3 and the main body 11 are relatively simple, and the difference between the depth of the first sub-cavity V111 and the length of the first tube segment 31 is substantially equal to the moving range of the nozzle pressing member 3.

[0073] As described above, by dividing the tool body 1 into at least two independent parts and processing them separately, the nozzle pressing part 3 is first installed on the main body 11, and then the pressing plate part 12 is connected to the main body 11, and the pressing plate part 12 restricts the nozzle pressing part 3 from being separated from the installation opening 108. In this way, it is convenient to assemble and further restricts the nozzle pressing part 3 from being separated.

[0074] Of course, the pressure plate 12 may be removed in other embodiments of the present application. For example, when the tool body 1 is installed on a welding gun, the side of the mounting port 108 is connected to the welding gun. After assembly, the top of the pressure nozzle 3 is restricted by the welding gun.

[0075] Furthermore, if Figure 4 As shown, the projection of the platen cavity V12 on the surface where the welding head first opening 101 is located coincides with the welding head first opening 101. In this way, the cross-sectional shape of the platen cavity V12 does not need to be provided with a gradual structure, and is easy to process, and can be processed by various methods such as stamping and punching.

[0076] Specifically, the projection of the stopper 13 on the surface where the welding head first opening 101 is located is at least partially located outside the welding head first opening 101. In this way, the stopper 13 can be limited by the lower surface of the pressure plate 12, so that the elastic member 5 can be arranged in the first sub-cavity V111, and one end of the elastic member 5 abuts the stopper 13 and the other end abuts the pressure plate 12, which can simplify the structure and reduce the number of parts.

[0077] In some embodiments, Figure 3 and Figure 7 As shown, a gas channel V30 for introducing protective gas is provided on the tool body 1 and the nozzle piece 3, and the gas channel V30 is connected to the welding channel V20.

[0078] The protective gas introduced here can be an inert gas or other gas that is not easy to react with the material, such as nitrogen, etc., and there is no limitation here.

[0079] The use of the gas channel V30 to introduce the shielding gas can improve the welding effect. For example, it can protect the weld pool, reduce oxidation, reduce the spatter generated during welding, promote the uniform spreading of the weld pool during solidification, and reduce the shielding effect of the metal vapor plume or plasma cloud on the laser.

[0080] See also Figure 3 , Figure 4 and Figure 7Specifically, the gas channel V30 is formed on the tool body 1, and the gas channel V30 forms a gas inlet 104 on the upper surface of the main body 11, forms a gas outlet 103 on the inner surface of the accommodating chamber V10, and further forms a gas outlet 103 on the inner surface of the second sub-chamber V112. The side wall of the nozzle pressing member 3 is provided with a gas hole 303 penetrating the welding channel V20, and the second pipe section 32 of the nozzle pressing member 3 is further provided with a gas hole 303 penetrating the welding channel V20. That is to say, after the shielding gas passes into the accommodating chamber V10 through the gas channel V30, it can be filled into the welding channel V20 through the gas hole 303. Here, since the nozzle pressing member 3 is pressed on the workpiece 200 to be welded, the welding position is covered in the welding channel V20, and the setting position of the gas hole 303 can be flexibly selected according to the needs of the welding position. It is very convenient to set the gas hole 303 on the nozzle pressing member 3 to select the ventilation position, which is conducive to flushing the shielding gas into the welding channel V20 from the most needed place. In this way, it is possible to avoid the inability of the shielding gas to be effectively distributed to the welding position, save the use of shielding gas, and reduce the waste of shielding gas. It is understandable that in some embodiments, the air hole 303 that penetrates the welding channel V20 can be omitted on the side wall of the nozzle pressing member 3, and the shielding gas can be directly rushed into the welding channel V20 through the second opening 301 of the welding head on the nozzle pressing member 3.

[0081] Furthermore, when the second pipe section 32 of the nozzle pressing member 3 is accommodated in the second sub-cavity V112, the gas outlet 103 on the inner surface of the second sub-cavity V112 and the air hole 303 on the second pipe section 32 are staggered. Such an arrangement can disperse the airflow reaching the welding head, prevent the charged shielding gas from directly rushing into the air hole 303, and flow in after being buffered on the outer surface of the nozzle pressing member 3, which is conducive to controlling the flow rate and air volume of the shielding gas, helping to improve welding stability, reduce welding defect rate, and reduce the waste of shielding gas during welding.

[0082] Of course, in other embodiments of the present application, the gas outlet 103 and the air hole 303 may also be arranged opposite to each other. In this case, the control accuracy of the process and flow rate needs to be improved at the gas source.

[0083] Optionally, the air hole 303 is a circular hole, or other shapes of holes. When the air hole 303 is a circular hole, its diameter can be 3 mm or the like.

[0084] Furthermore, a guide groove 34 is provided on the outer surface of the nozzle pressing member 3, and the gas outlet 103 is arranged opposite to the guide groove 34, and one end of the air hole 303 is connected to the guide groove 34, and the other end is connected to the welding channel V20. In this way, the guide groove 34 can guide the shielding gas to disperse, and a guiding direction is set, which is conducive to the shielding gas rushing into the welding channel V20 along the air hole 303, reducing the air flow resistance and the turbulence caused by the air flow disturbance, which is conducive to the shielding gas to flow to the air hole 303 quickly and evenly and be distributed to the welding channel V20.

[0085] In some specific embodiments, the guide groove 34 includes: at least one main groove 341 and a buffer groove 342. The main groove 341 can be arranged horizontally, and one end of the main groove 341 close to the middle of the second pipe section 32 faces the gas outlet 103. When there are at least two main grooves 341, all the main grooves 341 intersect at one end close to the middle of the second pipe section 32, and the intersection faces the gas outlet 103, and faces the gas outlet 103, and the air hole 303 is located on the other end of the main groove 341 away from the middle of the second pipe section 32. The buffer groove 342 can be arranged longitudinally and connected to the main groove 341, and the connection point faces the gas outlet 103, and the air hole 303 may not be provided thereon.

[0086] The main line slot 341 is mainly used to guide the flow direction of the shielding gas. The main line slot 341 can be one or more, and there is no limitation here. There can be one or more air holes 303. Each main line slot 341 can be provided with one air hole 303 or multiple air holes 303. The buffer slot 342 is provided to increase the volume of the guide slot 34 and reduce the overflow of the shielding gas when the flow rate suddenly increases.

[0087] In some solutions, there are two main line slots 341 , some of which are provided with air holes 303 , while some of which are not provided with air holes 303 .

[0088] In some embodiments, the nozzle member 3 is a heat-conducting member, which is conducive to quickly conducting heat out and avoiding the heat being concentrated on the workpiece 200 to be welded, causing it to deform too much.

[0089] Optionally, the nozzle piece 3 is a beryllium copper piece, which has excellent properties such as fast thermal conductivity and high hardness. In some application scenarios, such as when the workpiece 200 to be welded is a tab, beryllium copper pieces are more suitable than copper pieces.

[0090] In some specific embodiments, Figure 4 As shown, the welding head tool 100 also includes a connector 7 installed at the gas inlet 104 of the gas channel V30. The function of the connector 7 is to complete the quick docking with the gas delivery pipeline to ensure that the shielding gas can be smoothly delivered to the gas channel V30. Of course, in some solutions, the connector 7 can also be set on the delivery pipeline, and the connector 7 on the delivery pipeline is inserted into the gas inlet 104 of the gas channel V30 during assembly.

[0091] Here, the connector 7 may be a gas connector known in the prior art, and its structure is not limited.

[0092] Alternatively, if Figure 3As shown, the tool body 1 is formed by connecting at least two plates, and the gas channel V30 is formed on at least two plates. The gas channel V30 forms a gas buffer chamber V31 at the connection of the two plates. In this way, the gas buffer chamber V31 with a certain volume is conducive to buffering the gas flow. When the protective gas flow rate is too large, it can be buffered in the gas buffer chamber V31 to avoid a large amount of protective gas suddenly rushing into the accommodating chamber V10, resulting in excessive waste.

[0093] A gas buffer cavity V31 is provided at the connection between the two plates to facilitate the processing and sealing of the gas buffer cavity V31.

[0094] The main body 11 and the pressure plate 12 can be made of SUS304 or other materials.

[0095] In some specific embodiments, Figure 5 and Figure 6 As shown, the welding head tool 100 also includes: an epitaxial tube 14, which is installed on the tool body 1 opposite to the welding head first opening 101. The setting of the epitaxial tube 14 reserves enough avoidance space for welding, increases the dust collection coverage area, and reduces the impact of welding smoke on the product process.

[0096] Optionally, the extension tube 14 is provided with a flange, and is connected to the tool body 1 through the flange. Optionally, there are at least two flanges, which are fixed to the tool body 1 through screws, and the extension tube 14 is specifically connected to the pressing plate 12.

[0097] In some embodiments, the welding head tooling 100 is also provided with a smoke removal structure, which can discharge a large amount of smoke and dust generated during the welding process, improve the welding effect, and reduce the occurrence of defects such as welding explosion, perforation, and severe surface dirt.

[0098] The smoke removal structure can be in various forms. In some specific embodiments, the tool body 1 further includes: a first dust suction pipe 61. The epitaxial tube 14 is installed on the tool body 1 opposite to the first opening 101 of the welding head. One end of the first dust suction pipe 61 is connected to the side wall of the epitaxial tube 14 and communicates with the inner cavity of the epitaxial tube 14. In this way, a large amount of smoke in the accommodating cavity V10 can be guided to the end away from the welding head position, which greatly reduces the smoke from gathering in the welding molten pool to affect the welding quality.

[0099] In other specific embodiments, Figure 3 As shown, a dust removal channel V40 is provided on the tool body 1 and the nozzle member 3, and the dust removal channel V40 is connected to the welding channel V20. In this way, smoke and dust are directly guided away from the welding channel V20, and the dust removal port is closer to the welding position, which can improve the dust removal effect of the welding head and increase the dust removal amount.

[0100] Specifically, Figure 3 , Figure 4 and Figure 7 As shown, the dust removal channel V40 is formed on the tool body 1, the dust removal channel V40 forms a dust removal outlet 106 on the upper surface of the main body 11, forms a dust removal inlet 105 on the inner surface of the accommodating cavity V10, and further forms a dust removal inlet 105 on the inner surface of the second sub-cavity V112, as shown in FIG. Fig. 9 As shown, a dust removal hole 304 penetrating the welding channel V20 is provided on the side wall of the nozzle pressing member 3, and a dust removal hole 304 penetrating the welding channel V20 is further provided on the second pipe section 32 of the nozzle pressing member 3, and the dust removal hole 304 is arranged opposite to the dust removal inlet 105. When the dust removal is arranged oppositely, the flow resistance is small and the dust removal is more thorough.

[0101] Alternatively, if Figure 3 As shown, the tool body 1 is formed by connecting at least two plates, and the dust removal channel V40 is formed on at least two plates. The dust removal channel V40 forms a dust removal buffer chamber V41 at the connection between the two plates. In this way, the dust removal buffer chamber V41 with a certain volume is conducive to quickly caching the smoke in the dust removal channel V40 when the power is insufficient, so that the smoke sticks to the workpiece 200 to be welded as little as possible. The dust removal buffer chamber V41 is set at the connection between the two plates to facilitate the processing and sealing of the dust removal buffer chamber V41.

[0102] In some specific embodiments, Figure 1 , Figure 2 and Figure 6 As shown, the welding head tooling 100 further includes: a second dust suction pipe 62, which is connected to the dust removal outlet 106 of the dust removal channel V40, so as to facilitate the pipe to guide out the smoke and reduce the pollution to the welding environment.

[0103] Here, the flow power of the smoke in the first dust suction pipe 61 and the second dust suction pipe 62 can be set as a negative pressure pipe to suck the smoke by pressure difference. The first dust suction pipe 61 and the second dust suction pipe 62 are set at the same time, and welding dust removal pipes can be added from the top and the side to ensure that the smoke generated by welding can be quickly removed.

[0104] Specifically, the first dust suction pipe 61 and the second dust suction pipe 62 have a diameter of The pipe material is SUS304, and other diameters and materials can also be used.

[0105] In some solutions, a driving pump may also be provided on the tool body 1 , and the driving pump is used to drive the smoke and dust to flow from the dust removal inlet 105 to the dust removal outlet 106 .

[0106] In some embodiments, Figure 4 and Figure 5As shown, the welding pressure head tool 100 also includes: a connection block 8 connected to the tool body 1, and the connection block 8 is at least one and is used to connect the main body of the welding device. Therefore, the connection block 8 can increase the connection point on the side of the tool to improve the connection stability.

[0107] Alternatively, if Figure 4 and Figure 5 As shown, the connection block 8 is L-shaped, one side of the L-shaped connection block is fixedly connected to the pressure plate 12, and the other side of the L-shaped connection block is provided with a first connection hole 81. The L-shaped connection block is connected to the main machine of the welding equipment through the first connection hole 81, and the pressure plate 12 is provided with a second connection hole 107. The second connection hole 107 and the first connection hole 81 are located on the same side of the tool body 1 for connecting the main machine of the welding equipment, which can strengthen the fixed connection with the main machine. Fasteners are used for connection, such as screws, to improve the convenience of connection.

[0108] Specifically, two connecting blocks 8 are connected to the main body 11, which is U-shaped as a whole and functions to be connected to the main machine of the welding equipment to ensure the positioning stability of the entire tooling.

[0109] The welding equipment according to the embodiment of the utility model comprises the welding pressure head fixture 100 of the above embodiment and also comprises a welding head (not shown). The welding head welds the workpiece 200 to be welded through the welding pressure head fixture 100.

[0110] Specifically, the welding equipment includes a main machine (not shown) and a welding table (not shown), and the workpiece 200 to be welded is placed on the welding table. The welding pressure head fixture 100 and the welding head are both installed on the main machine, and the main machine can move relative to the welding table to drive the welding pressure head fixture 100 to press on the workpiece 200 to be welded, mainly by the pressure nozzle 3 pressing on the workpiece 200 to be welded, to ensure that the workpiece 200 to be welded is flexibly positioned. After the positioning is completed, the welding head can extend into the welding channel V20 through the second opening 301 of the welding head, and the energy emitted by the welding head acts on the workpiece 200 to be welded to achieve welding connection. The welding head can be fixedly arranged relative to the fixture body 1. For example, only a certain point on the workpiece 200 to be welded is used as a welding point. After the pressure nozzle 3 presses the workpiece 200 to be welded, the welding head is just at the position of the welding point. The welding head can move relative to the tool body 1. For example, when multiple points on the workpiece 200 to be welded are used as welding points, after the nozzle member 3 presses the workpiece 200 to be welded, the welding head can move to a position facing one of the welding points, and after the welding is completed, the welding head moves to a position facing another welding point. The welding equipment is arranged in this way, which is easy to assemble and the welding process is very simple.

[0111] According to the welding equipment of the embodiment of the utility model, by setting the above-mentioned welding pressure head tooling 100, the nozzle piece 3 is guided and prevented from loosening by utilizing the cooperation between the nozzle piece 3 and the tooling body 1, and the flexible contact between the nozzle piece 3 and the workpiece 200 to be welded is not affected, which can reduce the damage to the workpiece 200 to be welded.

[0112] Other structures and operations of the welding equipment host according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0113] 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 utility model. 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.

[0114] Although the 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 welding head tool, characterized in that: include: A tool body, wherein a receiving cavity is provided on the tool body, and a first opening of a welding head and a pressure head outlet communicating with the receiving cavity are formed on the tool body; A nozzle pressing piece, wherein the nozzle pressing piece is provided with a stopper located in the accommodating cavity, the projection of the stopper on the surface where the pressure head outlet is located is at least partially located outside the pressure head outlet, the nozzle pressing piece is movably connected to the tooling body through the stopper, a welding channel is provided in the nozzle pressing piece, a second opening of the welding head and a welding port connected to the welding channel are formed on the nozzle pressing piece, the second opening of the welding head and the first opening of the welding head are used to correspond to the welding head settings, and the welding port is set corresponding to the pressure head outlet to press on the workpiece to be welded; An elastic member is respectively connected to the tool body and the nozzle member to push the end of the nozzle member provided with the welding port to approach or move away from the pressure head outlet.

2. The welding head tooling according to claim 1, characterized in that: The elastic member is located in the accommodating cavity.

3. The welding head tooling according to claim 2, characterized in that: The elastic member is located at a side of the stopper away from the pressure head outlet, one end of the elastic member abuts against the stopper and the other end abuts against the tool body.

4. The welding head tooling according to claim 3, characterized in that: The stopper is provided with a positioning groove, and one end of the elastic member is fitted in the positioning groove.

5. The welding head tooling according to claim 1, characterized in that: The tool body comprises a main body member and a pressing plate member connected to each other; The accommodating cavity includes a main body cavity formed on the main body member and a pressure plate cavity formed on the pressure plate member, the main body cavity is connected with the pressure plate cavity, the pressure head outlet is located at one end of the main body cavity away from the pressure plate member, and the welding head first opening is located at one end of the pressure plate cavity away from the main body member; The stopper is clamped between the pressure plate component and the main body component.

6. The welding head tooling according to claim 5, characterized in that: The nozzle pressing member is a tube body and includes a first tube segment, a second tube segment and a third tube segment arranged in sequence along the length direction thereof, the outer periphery of the first tube segment protrudes from the outer periphery of the second tube segment, and the protruding portion forms the stopper; The main body cavity comprises a stepped first sub-cavity and a second sub-cavity, the first sub-cavity is used to accommodate the first pipe segment, the second sub-cavity is used to accommodate the second pipe segment, the end of the second sub-cavity away from the first sub-cavity is the pressure head outlet, and the third pipe segment is located outside the pressure head outlet; A step surface is formed between the first sub-cavity and the second sub-cavity, and the step surface is used to support the stopper.

7. The welding head tooling according to any one of claims 1 to 6, characterized in that: The tool body and the nozzle piece are provided with a gas channel and a dust removal channel, and the gas channel and the dust removal channel are respectively connected to the welding channel. The gas channel is used to introduce protective gas, and the dust removal channel is used to remove dust.

8. The welding head tooling according to claim 7, characterized in that: The gas channel is formed on the tool body, and a gas outlet is formed on the inner surface of the accommodating cavity; and a gas hole penetrating the welding channel is provided on the side wall of the nozzle pressing member.

9. The welding head tooling according to claim 8, characterized in that: A guide groove is provided on the outer surface of the nozzle pressing piece, the gas outlet is arranged opposite to the guide groove, one end of the gas hole is connected to the guide groove, and the other end is connected to the welding channel.

10. A welding device, characterized in that: It comprises the welding pressure head tooling according to any one of claims 1 to 9, 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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