Laser module welding copper nozzle structure

Abstract

The utility model discloses a laser module welding copper nozzle structure which comprises a copper nozzle body, a buffering assembly and a protection piece. The buffering assembly is arranged at the edge position of the copper nozzle body and comprises a buffering rod and a buffering spring. The buffer rod penetrates through the copper nozzle body; one end of the buffer spring is connected with the outer wall of the buffer rod, and the other end of the buffer spring is connected with the surface of the copper nozzle body; the protection piece comprises a positioning ring and a telescopic sleeve; the positioning ring is fixed to the outer wall of the buffer rod, the two ends of the telescopic sleeve are connected with the surface of the positioning ring and the surface of the copper nozzle body respectively, and a protection cavity for containing the buffer spring is formed. By means of the arrangement, impurities formed in the welding process can be prevented from making contact with the buffering assembly, and therefore the operation stability of the whole structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding copper mouth, in particular to a laser module welding copper mouth structure. BACKGROUND

[0002] With the development of electric vehicle industry, laser welding is applied more and more widely in the manufacturing process of battery and battery pack. The welding copper mouth plays a decisive role in the quality of nickel sheet welding process. The specific principle is to apply heat to the nickel sheet through the copper mouth opening part by laser to form a molten pool and complete the welding function.

[0003] The existing Chinese patent with publication number CN221891124U proposes a laser welding copper mouth tool, which is provided with a buffer assembly including a guide rod and a spring on the tool, so that when the copper mouth is in contact with the welding part, the buffer effect can be provided, thereby helping to reduce the damage caused by the impact in the abutting process, achieving the purpose of improving the durability and service life of the tool.

[0004] However, the above-mentioned device has certain defects: such as the spring of the tool is always in a naked state during application, so during welding, the impurities (such as welding slag) of welding may come into contact with the spring and fall into the through hole of the copper mouth, thereby causing the problems of spring damage and the guide rod being stuck with the inner wall of the through hole. Correspondingly, after the copper mouth is welded with the welding part for a long time, the insufficient downward pressure on the welding part due to the damage of the spring may cause the copper mouth to deviate and not be able to be pressed down, that is, the welding position deviates and cannot be welded, etc.

[0005] Therefore, a laser module welding copper mouth structure is needed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a laser module welding copper mouth structure to avoid the contact between the impurities formed during welding and the buffer assembly, thereby improving the stability of the overall structure operation.

[0007] To solve the above-mentioned technical problems, the utility model provides a laser module welding copper mouth structure, which comprises a copper mouth body, a buffer assembly and a protection piece.

[0008] The buffer assembly is arranged at the edge position of the copper mouth body and comprises a buffer rod and a buffer spring.

[0009] The buffer rod penetrates the copper mouth body.

[0010] One end of the buffer spring is linked with the outer wall of the buffer rod, and the other end is connected with the surface of the copper mouth body.

[0011] The protection member comprises a positioning ring and a telescopic sleeve.

[0012] The positioning ring is fixed on the outer wall of the buffer rod, and the two ends of the telescopic sleeve are connected with the surface of the positioning ring and the surface of the copper nozzle body respectively, and a protection chamber accommodating the buffer spring is formed.

[0013] Further, a gap is reserved between the telescopic sleeve and the buffer spring.

[0014] Further, the telescopic sleeve is provided as a bellows.

[0015] Further, an intercepting member is arranged at the axis of the copper nozzle body away from the welding member, for intercepting impurities formed in the welding process.

[0016] Further, the intercepting member comprises a cover body and a ring-shaped protrusion.

[0017] The ring-shaped protrusion is arranged on the inner wall of the cover body, and the inner wall of the ring-shaped protrusion gradually extends along the axis of the cover body in the direction close to the welding member.

[0018] Further, the cross section of the ring-shaped protrusion is provided as a circular truncated cone structure, so that an intercepting cavity is formed between the outer wall of the ring-shaped protrusion and the cover body.

[0019] Further, the ring-shaped protrusion is provided as an elastic rubber material.

[0020] Further, the outer wall of the copper nozzle body is provided with a decontamination negative pressure hole for sucking out the gas formed in the welding process.

[0021] Further, the outer wall of the copper nozzle body is further provided with a protective gas inlet hole.

[0022] Compared with the prior art, the utility model has at least the following beneficial effects:

[0023] By arranging the protection member comprising the positioning ring and the telescopic sleeve, a protection chamber is formed around the outside of the buffer spring, so that the impurities formed in the welding process are effectively isolated on the outside of the through hole of the copper nozzle body for installing the buffer rod and the buffer spring, thereby avoiding the situation that the subsequent welding is deviated or cannot be welded due to the contact or falling of the impurities into the through hole, and the purpose of improving the stability of the laser module welding copper nozzle structure in operation is achieved.

[0024] Further, the intercepting piece comprising the cover body and the annular protrusion is arranged to intercept the impurities splashed from the middle part of the copper nozzle body during the welding process, the cross section of the annular protrusion is arranged as a circular truncated cone structure, the inner wall decreases along the direction close to the welding piece, the annular protrusion and the cover body form an intercepting cavity to increase the intercepting effect of the impurities, so that the secondary protection is provided for the buffer assembly, and the overall structure operation stability is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a sectional view of the buffer assembly in the laser module welding copper nozzle structure in an embodiment of the present application.

[0026] Figure 2 It is a partial structure schematic view of the laser module welding copper nozzle structure in an embodiment of the present application.

[0027] Figure 3 It is a sectional view of the laser module welding copper nozzle structure in an embodiment of the present application.

[0028] Corresponding components are denoted by the same reference numerals in the various figures of the drawing. The reference signs 1, copper nozzle body; 2, buffer assembly; 21, buffer rod; 22, buffer spring; 3, protection piece; 31, positioning ring; 32, telescopic sleeve; 4, intercepting piece; 41, cover body; 42, annular protrusion; 5, impurity removal negative pressure hole. DETAILED DESCRIPTION

[0029] The laser module welding copper nozzle structure of the present application will be described in more detail below with reference to the accompanying drawings, in which the preferred embodiments of the present application are shown, it should be understood that the present application described herein can be modified by those skilled in the art, and the advantageous effects of the present application can still be achieved. Therefore, the following description should be understood as extensive knowledge for those skilled in the art, and not as a limitation of the present application.

[0030] The present application will be described in more detail in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present application will be more apparent according to the following description. It should be noted that the drawings are very simplified and all use non-precise proportions, only to facilitate, clear and assist the purpose of describing the embodiments of the present application.

[0031] Embodiment one

[0032] As shown in Figure 1 and Figure 2 , the present application embodiment proposes a laser module welding copper nozzle structure, comprising a copper nozzle body 1, a buffer assembly 2 and a protection piece 3.

[0033] The buffer assembly 2 is arranged at the edge of the copper nozzle body 1 and comprises a buffer rod 21 and a buffer spring 22, so as to reduce the damage of the copper nozzle body 1 caused by the impact during the abutting process with the welding piece, and improve the service life of the copper nozzle body 1.

[0034] It should be noted that the buffer rod 21 penetrates the copper nozzle body 1, and one end of the buffer spring 22 is linked with the outer wall of the buffer rod 21, and the other end is connected with the surface of the copper nozzle body 1. When the copper nozzle body 1 is continuously pressed with the welding piece, the buffer spring 22 can be compressed, and at the same time, the buffer spring 22 can provide a reverse force as a pre-tightening force for supporting the welding piece.

[0035] In this embodiment, the protection piece 3 comprises a positioning ring 31 and a telescopic sleeve 32.

[0036] The positioning ring 31 is fixed on the outer wall of the buffer rod 21, and the two ends of the telescopic sleeve 32 are respectively connected with the surface of the positioning ring 31 and the surface of the copper nozzle body 1, and form a protection chamber accommodating the buffer spring 22. That is, the buffer spring 22 and the through hole provided on the copper nozzle body 1 for the operation of the buffer rod 21 are separated from the outside by the protection chamber, so that the invalidation of the buffer spring 22 and the jamming of the buffer rod 21 caused by the contact of impurities with the buffer spring 22 and the deposition in the through hole can be effectively avoided, and the abnormal welding position deviation and welding failure caused by the invalidation of the buffer spring 22 and the jamming of the buffer rod 21 can be avoided.

[0037] The device forms a protection chamber around the outside of the buffer spring 22 by arranging the protection piece 3 comprising the positioning ring 31 and the telescopic sleeve 32, so as to effectively isolate the impurities formed during the welding process from the outside of the through hole provided on the copper nozzle body 1 for installing the buffer rod 21 and the buffer spring 22, so as to avoid the welding deviation or welding failure during the subsequent welding caused by the contact of impurities with the buffer spring 22 or the falling into the through hole, and achieve the purpose of improving the stability of the laser module welding copper nozzle structure during operation.

[0038] In this embodiment, in order to avoid the interference between the telescopic sleeve 32 and the buffer spring 22 during the mutual operation, the positional relationship between the two is further limited, specifically, a gap, i.e. an annular gap, is reserved between the telescopic sleeve 32 and the buffer spring 22, for the deformation (i.e. compression and lengthening) of the telescopic sleeve 32 and the buffer spring 22.

[0039] In a specific example, the telescopic sleeve 32 is arranged as a bellows, so as to meet the telescopic performance and at the same time form the protection chamber around the buffer spring 22.

[0040] Embodiment two

[0041] As shown in Figure 2 and Figure 3 The embodiment is based on the first embodiment, and further proposes an intercepting member 4 to provide secondary protection for the buffer assembly 2, so as to further improve the operation stability of the overall structure.

[0042] Specifically, the copper nozzle body 1 is provided with the intercepting member 4 at the axis of the side away from the welding member, which is used to intercept the impurities formed in the welding process.

[0043] In one embodiment, the intercepting member 4 includes a cover body 41 and a ring-shaped protrusion 42.

[0044] It should be noted that the ring-shaped protrusion 42 is arranged on the inner wall of the cover body 41, and the inner wall of the ring-shaped protrusion 42 gradually extends along the axis of the cover body 41 in the direction close to the welding member, so as to increase the interception range of the impurities and improve the interception effect.

[0045] Specifically, the cross section of the ring-shaped protrusion 42 is designed as a circular truncated cone structure, so that an interception cavity is formed between the outer wall of the ring-shaped protrusion 42 and the cover body 41.

[0046] In this embodiment, the ring-shaped protrusion 42 is made of elastic rubber material, so that when the impurities contact the ring-shaped protrusion 42, the impact force of the impurities can be reduced, and the rate of impurity splashing can be slowed down, further preventing the impurities from flying out of the copper nozzle body 1, so as to provide secondary protection for the buffer assembly 2.

[0047] In other embodiments, the outer wall of the copper nozzle body 1 is provided with a decontamination negative pressure hole 5 for sucking out the gas formed in the welding process.

[0048] In addition, the outer wall of the copper nozzle body 1 is further provided with a protective gas inlet hole (not shown in the figure), which is used to reduce the generation of oxide impurities such as oxygen, that is, to reduce the oxidation risk of the copper nozzle and the welding material.

[0049] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A laser module soldering copper nozzle structure, characterized in that, The copper nozzle body, the buffer assembly and the protective member are included; The buffer assembly is arranged at the edge of the copper nozzle body and includes a buffer rod and a buffer spring; The buffer rod penetrates the copper nozzle body; One end of the buffer spring is connected with the outer wall of the buffer rod, and the other end is connected with the surface of the copper nozzle body; The protective member includes a positioning ring and an elastic sleeve; The positioning ring is fixed on the outer wall of the buffer rod, and the elastic sleeve is connected with the surface of the positioning ring and the surface of the copper nozzle body at two ends, and forms a protective cavity for accommodating the buffer spring.

2. The laser module welded copper nozzle structure of claim 1, wherein, A gap is reserved between the elastic sleeve and the buffer spring.

3. The laser module according to claim 1, wherein the copper nozzle structure is welded by a laser beam. The elastic sleeve is arranged as a bellows.

4. The laser module according to claim 1, wherein the copper nozzle structure is welded by a laser beam. An intercepting member is arranged at the axis of the copper nozzle body away from the welding member, for intercepting impurities formed in the welding process.

5. The laser module according to claim 4, wherein the copper nozzle structure is welded by a laser beam. The intercepting member includes a cover body and a ring-shaped protrusion; The ring-shaped protrusion is arranged on the inner wall of the cover body, and the inner wall of the ring-shaped protrusion gradually extends along the axis of the cover body in the direction close to the welding member.

6. The laser module according to claim 5, wherein the copper nozzle structure is welded by a laser beam. The cross section of the ring-shaped protrusion is arranged as a circular truncated cone structure, so that an intercepting cavity is formed between the outer wall of the ring-shaped protrusion and the cover body.

7. The laser module according to claim 5, wherein the copper nozzle structure is welded by a laser beam. The ring-shaped protrusion is arranged as an elastic rubber material.

8. The laser module according to claim 1, wherein the copper nozzle structure is welded by laser. 8 A decontamination negative pressure hole is arranged on the outer wall of the copper nozzle body, for sucking and extracting the gas formed in the welding process.

9. The laser module welding copper nozzle structure as described in claim 1, characterized in that, A protective gas inlet hole is further arranged on the outer wall of the copper nozzle body.

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