Pressure head assembly for laser welding

Abstract

The pressing head assembly comprises a pressing head installation block and a pressing head, the pressing head installation block is provided with a containing space with an opening, a positioning piece is arranged on the inner wall of the containing space, and the pressing head comprises an insertion section extending by a certain length and a pressing part used for pressing welding materials. And when the insertion section is inserted into the accommodating space from the opening to a certain depth, the positioning piece fixes the insertion section. According to the pressing head assembly for laser welding, the containing space with the opening is formed in the pressing head installation block, the inserting section capable of being inserted into the containing space is arranged on the pressing head, the positioning piece is arranged in the containing space to fix the inserting section so that the pressing head can be fixed, and screws or other fasteners are not adopted for fixing the pressing head; the pressure head can be conveniently and quickly replaced, and the time for replacing the pressure head is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a pressure head assembly used for laser welding. Background Art

[0002] Laser welding is an important aspect of laser processing technology application. It is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. By using a continuous or pulsed laser beam to locally heat a small area of ​​the material, the energy is expanded to the inside of the material through heat conduction, and the welding material and the welded material are melted before welding. The advantages of laser welding are precise control, high welding quality and easy automation.

[0003] The essence of laser welding is to hot-melt weld two welding materials, and the two welding materials need to be pressed tightly during the welding process. In view of the pressing requirements of laser welding, the junction box laser welding equipment needs a pressure head to press the junction box and the bus bar to ensure that the junction box and the bus bar fit together. The laser welding effect is proportional to the pressing effect. Therefore, due to repeated pressing of the pressure head, material wear and contamination of the pressure head by laser welding spatter, the pressure head needs to be replaced regularly. In addition, the pressure head is subjected to stress for a long time, causing the screws to deform under stress, making disassembly difficult.

[0004] Therefore, it is urgent to propose a new pressure head assembly for laser welding, which is convenient and quick to replace, so as to reduce the time required for replacing the pressure head. Utility Model Content

[0005] The utility model provides a pressure head assembly for laser welding, which is convenient and quick to replace, so as to reduce the time required for replacing the pressure head.

[0006] In a first aspect, an embodiment of the utility model provides a ram assembly for laser welding, comprising: a ram mounting block, on which a accommodating space with an opening is provided, and a positioning piece is provided on the inner wall of the accommodating space; a ram, comprising an insertion section extending a certain length and a pressing portion for pressing welding materials; wherein, when the insertion section is inserted from the opening into the accommodating space to a certain depth, the positioning piece fixes the insertion section.

[0007] In a second aspect, an embodiment of the utility model provides a ram assembly for laser welding, comprising: a ram mounting block, the ram mounting block comprising a first sub-mounting block and a second sub-mounting block, the second sub-mounting block being mounted on the first sub-mounting block and forming a receiving space having an opening with the first sub-mounting block, the first sub-mounting block protruding into the receiving space to form a positioning portion; a wedge-shaped sliding block, the wedge-shaped sliding block being arranged in the receiving space and being able to slide a certain distance axially along the receiving space, one end of the wedge-shaped sliding block being connected to an elastic member, and the other end being a first inclined surface; a ram, the ram comprising a pressing portion for pressing welding materials and an insertion section having a second inclined surface, the insertion section being provided with a first positioning groove matching the positioning portion; wherein the insertion section is inserted into the receiving space from the first opening, the second inclined surface is in contact with the first inclined surface, pushing the wedge-shaped sliding block to slide a certain distance and compressing the elastic member, so that the positioning portion enters the first positioning groove.

[0008] According to the aforementioned embodiment of the second aspect of the utility model, a narrow and long opening is provided on the second sub-mounting block, the narrow and long opening is connected to the accommodating space, a screw passes through the narrow and long opening and is fixedly connected to the wedge-shaped sliding block, the screw head is exposed from the narrow and long opening, and the screw can slide along the narrow and long opening, driving the wedge-shaped sliding block to slide in the accommodating space.

[0009] According to any of the aforementioned implementations of the second aspect of the utility model, the elastic member includes a spring.

[0010] In the third aspect, an embodiment of the utility model provides a ram assembly for laser welding, comprising: a ram mounting block, on which a through hole is provided; a ram, which comprises an insertion section matching the shape of the through hole and a pressing portion for pressing welding materials; wherein an elastic positioning member is provided on at least one inner side wall of the through hole, and the insertion section is provided with a second positioning groove, so that when the insertion section is inserted into the through hole to a certain length, the elastic positioning member enters the second positioning groove.

[0011] According to the aforementioned implementation of the third aspect of the utility model, the elastic positioning member is a ball plunger, and the second positioning groove is a "V"-shaped groove.

[0012] According to any of the aforementioned embodiments of the third aspect of the utility model, the ram assembly for laser welding further includes: a baffle, which is disposed on the ram mounting block and is used to seal one end of the through hole to limit the insertion depth of the insertion section.

[0013] In the fourth aspect, an embodiment of the utility model provides a ram assembly for laser welding, comprising: a ram mounting block, on which a limiting groove is provided; a ram, which comprises an insertion section matching the shape of the limiting groove and a pressing portion for pressing the welding material; wherein a magnetic positioning member is provided on at least one inner side wall of the limiting groove, so that when the insertion section is inserted into the limiting groove, the magnetic positioning member adsorbs and positions the insertion section.

[0014] According to the aforementioned embodiment of the fourth aspect of the utility model, the pressure head assembly for laser welding also includes: a tail hook fixing plate, a tail hook fixing groove is provided on the tail hook fixing plate, and the tail hook fixing plate is fixed at one end of the limiting groove; wherein, a tail hook is provided at one end of the insertion section inserted into the limiting groove, and the tail hook is bent downward to hook the tail hook fixing groove.

[0015] According to the aforementioned embodiment of the first aspect of the utility model, the pressure head assembly for laser welding includes: an air knife block; wherein, an air duct for gas to enter is arranged in the pressure head mounting block, and the air duct outlet is arranged above the pressing part, and the air knife block is fixedly installed at the outlet to compress the gas to form a wind knife.

[0016] According to the embodiment of the utility model, the pressure head assembly for laser welding includes a pressure head mounting block and a pressure head, the pressure head mounting block is provided with a receiving space with an opening, a positioning member is provided on the inner wall of the receiving space, the pressure head includes an insertion section extending a certain length and a pressing part for pressing the welding material, and when the insertion section is inserted from the opening into the receiving space to a certain depth, the positioning member fixes the insertion section. The pressure head assembly for laser welding according to the embodiment of the utility model is provided with a receiving space with an opening on the pressure head mounting block, an insertion section capable of being inserted into the receiving space is provided on the pressure head, and the pressure head is fixed by fixing the insertion section by providing a positioning member in the receiving space, and the pressure head is fixed without using screws or other fasteners to fix the pressure head, so that the pressure head can be quickly replaced and the time required for replacing the pressure head can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the first embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the second embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the third embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the fourth embodiment of the utility model;

[0022] Figure 5 This is a schematic structural diagram of a pressure head assembly for laser welding according to an embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the fifth embodiment of the utility model;

[0024] Figure 7 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the sixth embodiment of the utility model;

[0025] Figure 8 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the seventh embodiment of the utility model;

[0026] Fig. 9 It is a schematic structural explosion diagram of a pressure head assembly for laser welding according to the eighth embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 100-pressing head mounting block; 100A-first sub-mounting block; 100B-second sub-mounting block; 100B1-long and narrow opening; 110-accommodating space; 110A-through hole; 110B-limiting groove; 120-positioning member; 120A-positioning part; 120B-first positioning groove; 120C-elastic positioning member; 120D-"V"-shaped groove; 120E-magnetic positioning member; 130-wedge-shaped sliding block; 131-first inclined surface; 140-elastic member; 150-screw; 160-blocking plate; 170-tail hook fixing plate;

[0029] 200-pressing head; 210-insertion section; 211-second inclined surface; 220-pressing part; 230-tail hook;

[0030] 300-wind knife block.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] participate Figure 1 , Figure 1 The structure of the first embodiment of the utility model is an exploded schematic diagram of the press head assembly for laser welding. The embodiment of the utility model provides a press head assembly for laser welding, which is used in the laser welding equipment of the junction box to press the busbar tightly against the terminal in the junction box. The press head assembly for laser welding of the embodiment of the utility model includes a press head mounting block 100 and a press head 200. The press head mounting block 100 is provided with a receiving space 110 with an opening. A positioning member 120 is provided on the inner wall of the receiving space 110. The press head 200 includes an insertion section 210 extending a certain length and a pressing portion 220 for pressing the welding material. In the embodiment of the utility model, the welding material is the busbar and the terminal on the junction box. The insertion section 210 is inserted into the receiving space 110 from the opening on the press head mounting block 100. The positioning member 120 provided on the inner wall of the receiving space 110 fixes the insertion section 210 of the press head 200, thereby fixing the press head 200.

[0036] The ram assembly for laser welding of the embodiment of the utility model is provided with a receiving space 110 with an opening on the ram mounting block 100, an insertion section 210 capable of being inserted into the receiving space 110 is provided on the ram 200, and a positioning member 120 is provided on the inner wall of the receiving space 110 to fix the insertion section 210 of the ram 200, thereby fixing the ram 200. There is no need to use screws or other fasteners to fix the ram 200, which facilitates the rapid disassembly and installation of the ram 200 and reduces the time required for replacing the ram 200.

[0037] See also Figure 2 to Figure 5 , Figure 2 This is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the second embodiment of the utility model. Figure 3 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the third embodiment of the utility model; Figure 4 It is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the fourth embodiment of the utility model; Figure 5 The structural assembly diagram of a ram assembly for laser welding of an embodiment of the utility model is shown in FIG. In some embodiments, the ram assembly for laser welding of the utility model includes: a ram mounting block 100, a wedge-shaped sliding block 130, and a ram 200. The ram mounting block 100 includes a first sub-mounting block 100A and a second sub-mounting block 100B. The second sub-mounting block 100B is mounted on the first sub-mounting block 100A and forms a receiving space 110 with an opening with the first sub-mounting block 100A. The first sub-mounting block 100A protrudes into the receiving space 110 to form a positioning portion 120A. In the embodiment of the utility model, the protruding positioning portion 120A may be a rectangle. It should be noted that the utility model does not specifically limit the protruding shape of the positioning portion 120A. In other embodiments, the positioning portion 120A may also protrude into other shapes.

[0038] The wedge-shaped sliding block 130 is disposed in the accommodating space 110 and can slide a certain distance along the axial direction of the accommodating space 110. An elastic member 140 is connected to one end of the wedge-shaped sliding block 130. The wedge-shaped sliding block 130 can slide along the axial direction of the accommodating space 110 and compress the elastic member 140 under the action of an external force, and can also slide along the axial direction of the accommodating space 110 under the action of the elastic member 140. The other end of the wedge-shaped sliding block 130 is set as a first inclined surface 131.

[0039] The pressing head 200 includes a pressing portion 220 for pressing the welding material and an insertion section 210 having a second inclined surface 211. The insertion section 210 is also provided with a first positioning groove 120B matching the shape of the positioning portion 120A. The insertion section 210 can be inserted into the accommodating space 110 from the opening of the accommodating space 110, so that the second inclined surface 211 abuts against the first inclined surface 131. Under the action of external force, the wedge-shaped sliding block 130 is pushed to slide along the axial direction of the accommodating space 110 and compress the elastic member 140, so that the positioning portion 120A enters the first positioning groove 120B. After the external force is cancelled, under the elastic force of the elastic member 140, the wedge-shaped sliding block 130 slides back along the axial direction of the accommodating space 110 and provides a supporting force to the second inclined surface 211 of the insertion section 210, so that the insertion section 210 of the pressing head 200 is fixed, thereby achieving the fixation of the pressing head 200.

[0040] In other embodiments, the positions of the positioning portion 120A and the first positioning groove 120B may also be swapped, that is, the first positioning groove 120B is formed by a depression on the side wall of the second sub-mounting block 100B facing the accommodating space 110, and the positioning portion 120A is formed by a protrusion on the insertion section 210 of the pressing head 200. The present invention does not specifically limit the positions of the positioning portion 120A and the first positioning groove 120B.

[0041] In the above embodiment, the insertion section 210 of the pressure head 200 is inserted into the accommodating space 110, and the wedge-shaped sliding block 130 is pushed by an external force to slide a certain distance and compress the elastic member 140, so that the positioning portion 120A enters the first positioning groove 120B. Then, the external force is canceled, and the wedge-shaped sliding block 130 slides back a certain distance under the elastic force of the elastic member 140, so that the first inclined surface 131 provides a supporting force to fix the pressure head 200, thereby achieving the fixation of the pressure head 200; under the action of external force, the wedge-shaped sliding block 130 is pushed to compress the elastic member 140, so that the supporting force of the first inclined surface 131 of the wedge-shaped sliding block 130 on the insertion section 210 can be canceled, and the pressure head 200 can be easily removed without the help of auxiliary tools, thereby achieving the rapid replacement of the pressure head 200 and reducing the time required for replacing the pressure head 200.

[0042] In the above embodiment, a narrow opening 100B1 may be provided on the second sub-mounting block 100B, the narrow opening 100B1 is connected to the accommodating space 110, a screw 150 passes through the narrow opening 100B1 and is connected to the wedge-shaped sliding block 130, the head of the screw 150 is exposed from the narrow opening 100B1, and the screw 150 can slide along the narrow opening 100B1, driving the wedge-shaped sliding block 130 to slide in the accommodating space 100. By providing the narrow opening 100B1 and the screw 150, it is more convenient to push the wedge-shaped sliding block 130 to compress the elastic member 140, and it is more convenient to install and disassemble the pressure head 200, further improving the convenience of replacing the pressure head 200, and further reducing the time required for replacing the pressure head 200.

[0043] In some embodiments, the elastic member 140 may be a spring. In other embodiments, other elastic elements may also be used, which is not specifically limited in the present invention.

[0044] See also Figure 6 , Figure 7 , Figure 6 This is a schematic diagram of the structure explosion of a pressure head assembly for laser welding according to the fifth embodiment of the utility model. Figure 7 The sixth embodiment of the present invention is a schematic diagram of the structure of a ram assembly for laser welding. In some embodiments, the ram assembly for laser welding of the present invention includes: a ram mounting block 100 and a ram 200, a through hole 100A is provided on the ram mounting block 100, and the ram 200 includes an insertion section 210 matching the shape of the through hole 110A and a pressing portion 220 for pressing the welding material; wherein, an elastic positioning member 120C is provided on at least one inner side wall of the through hole 110A, and in the embodiment of the present invention, the elastic positioning member 120C is provided on the upper inner side wall of the through hole 110A, and in other embodiments, the elastic positioning member 120C may also be provided on other inner side walls of the through hole 110A, which is not specifically limited here. The insertion section 210 of the ram 200 is provided with a second positioning groove, so that when the insertion section 210 of the ram 200 is inserted into the through hole 110A to a certain length, the elastic positioning member 120C enters the second positioning groove to fix the insertion section 210 and thus fix the ram 200 .

[0045] In the above embodiment, a through hole 110A matching the shape of the insertion section 210 on the press head 200 is provided on the press head mounting block 100, and an elastic positioning member 140 is provided on the inner wall of the through hole 110A, and a second positioning groove is provided on the insertion section 210 of the press head 200. When the insertion section 210 of the press head 200 is inserted into the through hole 110A for a certain distance, the elastic positioning member 120C enters the through hole 110A to fix the press head 200. In the above embodiment, the insertion section 210 of the press head 200 can be directly pulled out to realize the disassembly of the press head 200 without the help of auxiliary tools, thereby realizing the rapid replacement of the press head 200 and reducing the time required for replacing the press head 200.

[0046] In some embodiments, the elastic positioning member 120C is set as a ball plunger. In other embodiments, the elastic positioning member 120C can also be set as other elastic elements, which is not specifically limited in the present invention. The second positioning groove is set as a "V"-shaped groove 120D. In other embodiments, the second positioning groove can also be set as a hemispherical groove or a fan-shaped groove, as well as other grooves with a smooth transition from the edge of the groove to the bottom of the groove, which is not specifically limited here. The second positioning groove is set as a "V"-shaped groove 120D, which can save the extraction force required when disassembling the pressure head 200, facilitate disassembly, and further reduce the time required to replace the pressure head 200.

[0047] In the above embodiment, the ram assembly for laser welding of the utility model may further include a baffle 160, which is arranged at one end of the sealing through hole 110A on the ram mounting block 100, and is used to block the insertion section 210 to prevent the insertion section 210 from being inserted into the through hole 110A with excessive force, causing the insertion distance of the insertion section 210 to exceed the matching position of the second positioning groove and the elastic positioning member 120C.

[0048] See also Figure 8 , Fig. 9 , Figure 8 An exploded schematic diagram of the structure of a pressure head assembly for laser welding according to a seventh embodiment of the utility model, Fig. 9The structural exploded schematic diagram of the ram assembly for laser welding of the eighth embodiment of the present utility model. In some embodiments, the ram assembly for laser welding of the present utility model includes a ram mounting block 100 and a ram 200, and a limiting groove 110B is provided on the ram mounting block 100; the ram 200 includes an insertion section 210 matching the shape of the limiting groove 110B and a pressing part 220 for pressing the welding material; wherein, a magnetic positioning member 120E is provided on at least one inner side wall of the limiting groove 110B, so that when the insertion section 210 is inserted into the limiting groove 110B, the magnetic positioning member 120E adsorbs and positions the insertion section 210. In the embodiment of the present utility model, the magnetic positioning member 120E is provided on the upper inner side wall of the limiting groove 110B. In other embodiments, the magnetic positioning member 120E can also be provided on other inner side walls of the limiting groove 110B or the magnetic positioning member 120E is provided on multiple inner side walls, which is not specifically limited here.

[0049] In the above embodiment, the insertion section 210 is fixed by the magnetic positioning member 120E, thereby fixing the pressure head 200. When disassembling, the pressure head 200 can be removed by directly pulling it out. The pressure head 200 is easy to replace, which greatly reduces the time required for replacing the pressure head 200.

[0050] In the above embodiment, the pressure head assembly for laser welding of the embodiment of the utility model can also include a tail hook fixing plate 170, on which a tail hook fixing groove is provided, and the tail hook fixing plate 170 is fixed to one end of the limiting groove 110B; wherein, a tail hook 230 is provided at one end of the insertion section inserted into the limiting groove 110B, and the tail hook 230 is bent downward to hook the tail hook fixing groove. By providing the tail hook 230 and the tail hook fixing plate 170, it is prevented that the pressure head 200 is too high in the process of pressing the busbar downward to the terminal on the junction box during operation, and the magnetic adsorption force provided by the magnetic positioning member 120E is insufficient, causing the pressure head 200 to fall off.

[0051] participate Figure 2 to Figure 7 In some embodiments, the pressure head assembly for laser welding of the utility model may further include an air knife block 300. An air duct for gas to enter is provided in the pressure head mounting block 100, and the air duct outlet is provided above the pressing part 220. The air knife block 300 is fixedly installed at the outlet to form an air knife with compressed gas. The air knife block 300 is provided above the pressing part 220 to form an air knife, which is used to blow away the smoke and welding slag formed during the welding process to prevent the laser beam from being blocked and affecting the welding effect. In the embodiment of the utility model, two upper and lower air outlets are provided on the air knife block 300 to enhance the cleaning effect of smoke and welding slag.

[0052] In addition, in the ram assembly for laser welding according to the embodiment of the utility model, the ram mounting block 100 is a single part that simultaneously achieves the function of fixing the air knife block 300 and the ram 200 .

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pressure head assembly for laser welding, characterized in that: include: A pressure head mounting block, wherein a receiving space with an opening is provided on the pressure head mounting block, and a positioning member is provided on the inner wall of the receiving space; A pressing head, the pressing head comprising an insertion section extending a certain length and a pressing portion for pressing welding materials; Wherein, when the insertion section is inserted from the opening into the accommodating space to a certain depth, the positioning member fixes the insertion section.

2. A pressure head assembly for laser welding, characterized in that: include: A pressure head mounting block, the pressure head mounting block comprising a first sub-mounting block and a second sub-mounting block, the second sub-mounting block being mounted on the first sub-mounting block and forming an accommodating space with an opening together with the first sub-mounting block, the first sub-mounting block protruding into the accommodating space to form a positioning portion; A wedge-shaped sliding block, which is arranged in the accommodating space and can slide a certain distance along the axial direction of the accommodating space, one end of the wedge-shaped sliding block is connected to an elastic member, and the other end is a first inclined surface; A pressing head, the pressing head comprising a pressing portion for pressing the welding material and an inserting section having a second inclined surface, the inserting section being provided with a first positioning groove matching the positioning portion; The insertion section is inserted into the accommodating space from the opening, and the second inclined surface is fitted with the first inclined surface, pushing the wedge-shaped sliding block to slide a certain distance and compressing the elastic member, so that the positioning portion enters the first positioning groove.

3. The pressure head assembly for laser welding according to claim 2, characterized in that: The second sub-mounting block is provided with a narrow opening, the narrow opening being connected to the accommodating space, a screw passes through the narrow opening and is fixedly connected to the wedge-shaped sliding block, the screw head is exposed from the narrow opening, and the screw can slide along the narrow opening to drive the wedge-shaped sliding block to slide in the accommodating space.

4. The pressure head assembly for laser welding according to claim 2, characterized in that: The elastic member includes a spring.

5. A pressure head assembly for laser welding, characterized in that: include: A pressure head mounting block, wherein a through hole is provided on the pressure head mounting block; A pressing head, the pressing head comprising an insertion section matching the shape of the through hole and a pressing portion for pressing the welding material; Wherein, an elastic positioning member is arranged on at least one inner side wall of the through hole, and the insertion section is provided with a second positioning groove, so that when the insertion section is inserted into the through hole to a certain length, the elastic positioning member enters the second positioning groove.

6. The pressure head assembly for laser welding according to claim 5, characterized in that: The elastic positioning member is a ball plunger, and the second positioning groove is a "V"-shaped groove.

7. The pressure head assembly for laser welding according to claim 5, characterized in that: Also includes: A baffle is disposed on the pressure head mounting block and is used to seal one end of the through hole to limit the insertion depth of the insertion section.

8. The pressure head assembly for laser welding according to claim 5, characterized in that: include: Air knife block; Among them, an air duct for gas to enter is arranged in the pressure head mounting block, the air duct outlet is arranged above the pressing part, and the air knife block is fixedly installed at the outlet to compress the gas to form an air knife.

9. A pressure head assembly for laser welding, characterized in that: include: A pressure head mounting block, wherein a limiting groove is provided on the pressure head mounting block; A pressing head, the pressing head comprising an insertion section matching the shape of the limiting groove and a pressing portion for pressing the welding material; Wherein, a magnetic positioning member is provided on at least one inner side wall of the limiting groove, so that when the insertion section is inserted into the limiting groove, the magnetic positioning member adsorbs and positions the insertion section.

10. The pressure head assembly for laser welding according to claim 9, characterized in that: Also includes: A tail hook fixing plate, wherein a tail hook fixing groove is formed on the tail hook fixing plate, and the tail hook fixing plate is fixed to one end of the limiting groove; Wherein, a tail hook is arranged at one end of the insertion section inserted into the limiting groove, and the tail hook is bent downward to hook the tail hook fixing groove.

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