Laser soldering lens protection device and corresponding laser welding head

Abstract

The utility model provides a laser soldering lens protection device and a corresponding laser welding head, the laser soldering lens protection device can protect a laser soldering lens of the laser welding head, and the laser soldering lens protection device comprises a lens holder, a protection lens, a fixing piece and an air knife assembly. The lens holder is arranged at the upper end of the laser welding head, the lens holder is connected with the laser welding head, a fixing hole is formed in the middle of the lens holder, and the position of the fixing hole corresponds to the position of the laser soldering tin lens. And the protection lens is arranged in the fixing hole, is connected with the lens holder, and is used for protecting the laser soldering tin lens. The fixing piece is arranged at the upper end of the lens holder and connected with the lens holder. A through hole is formed in the middle of the fixing piece and communicated with the fixing hole. The air knife assembly is connected to one side of the fixing piece, and the air knife assembly can form high-speed airflow so as to prevent molten tin beads from damaging the protection lens.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding equipment, in particular to a laser soldering lens protection device and a corresponding laser welding head. Background Art

[0002] With the increasing popularity and application of laser welding, it has been widely used in various processing scenarios. However, during the laser welding process, the laser welding head emits laser light upward, which can easily cause molten tin beads to fall into the laser lens. As a result, existing laser lenses are easily contaminated and damaged by molten tin beads.

[0003] Therefore, it is necessary to provide a laser soldering lens protection device and a corresponding laser welding head to solve the above technical problems. Utility Model Content

[0004] The utility model provides a laser soldering lens protection device and a corresponding laser welding head, which effectively solves the technical problem that the existing laser lens is easily contaminated and damaged by molten tin beads.

[0005] The utility model provides a laser soldering lens protection device for protecting the laser soldering lens of a laser welding head, which includes:

[0006] A lens holder is provided at the upper end of the laser welding head and is connected to the laser welding head. A fixing hole is provided in the middle of the lens holder, and the position of the fixing hole corresponds to the position of the laser soldering lens.

[0007] A protective lens is disposed in the fixing hole and connected to the lens holder to protect the laser soldering lens;

[0008] a fixing member, provided at the upper end of the lens holder and connected to the lens holder, wherein a through hole is provided in the middle of the fixing member, and the through hole is communicated with the fixing hole;

[0009] The air knife assembly is connected to one side of the fixing member and is used to form a high-speed airflow to prevent molten tin beads from damaging the protective lens.

[0010] Furthermore, the air knife assembly includes:

[0011] An air knife is connected to the fixing member, wherein a side of the air knife close to the fixing member is provided with an air knife air hole for guiding high-speed airflow, and a side of the air knife away from the fixing member is provided with a fixing groove;

[0012] An air knife sealing plate is arranged in the fixing groove and connected to the air knife;

[0013] The air pipe joint is connected to the air knife sealing plate and is used to access the high-speed airflow.

[0014] Furthermore, the lens holder includes a fixing portion, the fixing hole is arranged in the middle of the fixing portion, a card slot is provided at the bottom of the fixing piece, and the fixing portion is engaged in the card slot for firmly connecting the lens holder and the fixing piece.

[0015] Furthermore, the lens holder also includes a connecting portion, which is located on one side of the fixing portion. The connecting portion includes two protrusions, which are respectively located at both ends of the connecting portion. The protrusions protrude from the fixing portion, and the protrusions are connected to the side wall of the fixing part by screws, so as to increase the contact area between the lens holder and the fixing part, thereby making the connection between the lens holder and the fixing part more stable.

[0016] Furthermore, the wind knife also includes a protrusion, which is connected to the bottom of the fixing groove and is used to increase the strength of the wind knife to prevent the wind knife from being easily damaged.

[0017] Furthermore, the lens holder also includes an annular limit block, which is located in the fixing hole, arranged along the circumference of the fixing hole, connected to the side wall of the fixing hole, and arranged at the lower end of the protective lens. The limit block is connected to the protective lens and is used to limit the position of the protective lens in the vertical direction.

[0018] Furthermore, the plurality of air knife holes are evenly distributed along the length direction of the air knife, so as to set more air knife holes and thus better guide the high-speed airflow.

[0019] Furthermore, the protective lens is connected to the lens holder by fixing glue, so as to ensure a firm connection between the protective lens and the lens holder.

[0020] Furthermore, the wind knife is connected to the wind knife sealing plate by screws, and the wind knife is connected to the fixing member by screws.

[0021] A laser welding head comprises any one of the above-mentioned laser soldering lens protection devices.

[0022] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a laser soldering lens protection device, which is provided with a lens holder, a protective lens, a fixing member, and an air knife assembly. The protective lens is provided in the fixing hole of the lens holder, and the protective lens can be used to block molten tin beads. Thus, the protective lens can protect the laser soldering lens and effectively extend the service life of the laser soldering lens. Moreover, the provision of the protective lens effectively solves the technical problem that the existing laser lens is easily contaminated and damaged by molten tin beads. Moreover, the fixing member is connected to the lens holder. The air knife assembly is connected to one side of the fixing member, and the air knife assembly can be used to form a high-speed airflow to prevent molten tin beads from damaging the protective lens. Therefore, the provision of the air knife assembly effectively extends the service life of the protective lens. Furthermore, the protective lens can protect the laser soldering lens for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0024] Figure 1 This is a structural diagram of an embodiment of a laser welding head of the present invention.

[0025] Figure 2 This is one of the structural diagrams of an embodiment of the laser soldering lens protection device of the present invention.

[0026] Figure 3 This is the second structural diagram of an embodiment of the laser soldering lens protection device of the present invention.

[0027] Figure 4 This is a structural diagram of a lens holder in an embodiment of a laser soldering lens protection device of the present invention.

[0028] Figure 5 This is a structural diagram of a fixing part of an embodiment of a laser soldering lens protection device of the present invention.

[0029] Figure 6 This is a structural diagram of an air knife in an embodiment of a laser soldering lens protection device of the present invention.

[0030] Figure 7 The figure is a schematic structural diagram of a laser soldering lens according to an embodiment of a laser soldering lens protection device of the present invention.

[0031] In the figure, 10, laser welding head; 11, laser soldering lens protection device; 111, lens holder; 1111, fixing part; 1112, connecting part; 1113, protrusion; 1114, limit block; 1115, fixing hole; 112, protective lens; 113, fixing part; 1131, slot; 1132, through hole; 114, air knife assembly; 1141, air knife; 11411, protrusion; 11412, air knife air hole; 11413, fixing groove; 1142, air knife sealing plate; 1143, air pipe joint; 12, laser soldering lens. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0033] Directional terms mentioned in this invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used with reference to the directions of the drawings. The directional terms used are used to illustrate and understand the invention, and are not intended to limit the invention.

[0034] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor as limiting the order of precedence.

[0035] In the figures, structurally similar elements are denoted by the same reference numerals.

[0036] Please refer to Figure 1 and Figure 7 The present invention provides a laser soldering lens protection device 11, which can protect a laser soldering lens 12 of a laser welding head 10. The laser soldering lens protection device 11 includes a lens holder 111, a protective lens 112, a fixing member 113, and an air knife assembly 114. The laser soldering lens protection device 11 is used in a laser welding head 10.

[0037] Please refer to Figure 2 and Figure 3The lens holder 111 is mounted on the upper end of the laser welding head 10 and is connected to the laser welding head 10. A fixing hole 1115 is provided in the middle of the lens holder 111. The position of the fixing hole 1115 corresponds to the position of the laser soldering lens 12. The protective lens 112 is connected to the lens holder 111 via adhesive, ensuring a secure connection between the protective lens 112 and the lens holder 111. Even if the user uses the laser soldering lens protector 11 for an extended period of time, the protective lens 112 will not fall off the lens holder 111.

[0038] Please refer to Figure 4 and Figure 5 The lens holder 111 includes a fixing portion 1111, with a fixing hole 1115 disposed in the middle of the fixing portion 1111. A slot 1131 is disposed at the bottom of the fixing member 113, into which the fixing portion 1111 is snap-fitted. Because the fixing portion 1111 and the fixing member 113 are snap-fitted via the slot 1131, the connection between the lens holder 111 and the fixing member 113 is relatively stable. Since the fixing portion 1111 is connected to the slot 1131, the laser soldering lens protector 11 can save space for accommodating the fixing portion 1111. Consequently, the structure of the laser soldering lens protector 11 is relatively compact, effectively improving the space utilization of the laser soldering lens protector 11.

[0039] Please refer to Figure 4 and Figure 5 The lens holder 111 also includes a connecting portion 1112, which is located on one side of the fixing portion 1111. The connecting portion 1112 includes two protrusions 1113, which are respectively located at both ends of the connecting portion 1112. The protrusions 1113 protrude from the fixing portion 1111, and the protrusions 1113 are connected to the side walls of the fixing member 113 by screws. The provision of the protrusions 1113 can increase the contact area between the lens holder 111 and the fixing member 113, making the connection between the lens holder 111 and the fixing member 113 more stable. In addition, since the protrusions 1113 are connected to the side walls of the fixing member 113 by screws, it is also more convenient for the user to install or remove the lens holder 111 on the fixing member 113.

[0040] Please refer to 3 and Figure 4The lens holder 111 also includes an annular stopper 1114, which is located in the fixing hole 1115. The stopper 1114 is arranged along the circumference of the fixing hole 1115 and is connected to the sidewall of the fixing hole 1115. Furthermore, the stopper 1114 is positioned at the lower end of the protective lens 112 and is connected to the protective lens 112. The stopper 1114 vertically defines the position of the protective lens 112, while the sidewall of the fixing hole 1115 horizontally defines the position of the protective lens 112. Therefore, during use of the laser soldering lens protection device 111, the protective lens 112 will not shift or fall out of the fixing hole 1115. Furthermore, the protective lens 112 can protect the laser soldering lens 12 for a long period of time. Furthermore, the provision of the stopper 1114 also increases the strength of the lens holder 111. Therefore, during the long-term use of the laser soldering lens protection device 11 , it is difficult for external forces to damage the lens holder 111 .

[0041] Please refer to Figure 3 、 Figure 4 and Figure 5 , the protective lens 112 is arranged in the fixing hole 1115. The protective lens 112 is connected to the lens holder 111, and the protective lens 112 can be used to protect the laser soldering lens 12. The fixing part 113 is arranged at the upper end of the lens holder 111, and the fixing part 113 is connected to the lens holder 111. A through hole 1132 is provided in the middle of the fixing part 113, and the through hole 1132 is connected to the fixing hole 1115. The through hole 1132 can cooperate with the fixing hole 1115 to thereby guide the laser. The wind knife assembly 114 is connected to one side of the fixing part 113, and the wind knife assembly 114 is used to form a high-speed airflow, thereby preventing the molten tin beads from damaging the protective lens 112.

[0042] Please refer to Figure 2 and Figure 6The wind knife assembly 114 includes a wind knife 1141, a wind knife sealing plate 1142, and an air pipe joint 1143. The wind knife 1141 is connected to the fixing member 113. A wind knife air hole 11412 is provided on the side of the wind knife 1141 close to the fixing member 113. The wind knife air hole 11412 is used to guide the high-speed airflow. Multiple wind knife air holes 11412 are evenly distributed in the length direction of the wind knife 1141, so that the user can set more wind knife air holes 11412 on the wind knife 1141. In addition, the evenly distributed wind knife air holes 11412 can better guide the high-speed airflow. Moreover, the high-speed airflow can be evenly ejected in the horizontal direction, effectively expanding the range of blocking molten tin beads. A fixing groove 11413 is provided on the side of the wind knife 1141 away from the fixing member 113. The wind knife sealing plate 1142 is set in the fixing groove 11413, and the wind knife sealing plate 1142 is connected to the wind knife 1141. The air pipe joint 1143 is connected to the air knife sealing plate 1142, and the air pipe joint 1143 can be used to access the high-speed airflow. In addition, the air knife sealing plate 1142 can be used to fix the air pipe joint 1143.

[0043] Please refer to Figure 2 and Figure 6 The wind knife 1141 also includes a protrusion 11411, which is connected to the bottom of the fixing groove 11413. Moreover, the provision of the protrusion 11411 can increase the strength of the wind knife 1141. Since the wind knife 1141 has great strength, even if the user uses the wind knife 1141 multiple times, the wind knife 1141 is difficult to be damaged. The wind knife 1141 is connected to the wind knife sealing plate 1142 by screws, and the wind knife 1141 is connected to the fixing member 113 by screws. Therefore, the user can easily install and disassemble the wind knife 1141. If the wind knife 1141 is damaged, the user can disassemble the wind knife 1141 in time, and then the user can replace the wind knife 1141.

[0044] The installation process of the present invention is as follows: When installing the laser soldering lens protector 11, the user first installs the lens holder 111 on the upper end of the laser welding head 10. Next, the user installs the protective lens 112 into the fixing hole 1115 of the fixing portion 1111. Furthermore, the user connects the protective lens 112 to the lens holder 111 using fixing glue. Because the limit block 1114 is located on the side wall of the fixing hole 1115, the limit block 1114 can vertically limit the position of the protective lens 112. Furthermore, the side wall of the fixing hole 1115 can horizontally limit the position of the protective lens 112. Then, the user installs the fixing member 113 on the upper end of the lens holder 111. The user engages the fixing portion 1111 in the slot 1131 and screws the protrusions 1113 at both ends of the connecting portion 1112 to the side wall of the fixing member 113. Subsequently, the user installs the air knife assembly 114 on one side of the fixing member 113. The user connects the wind knife 1141 to the fixing part 113 with screws. Wind knife air holes 11412 are evenly arranged on the side of the wind knife 1141 close to the fixing part 113. The wind knife air holes 11412 can form a high-speed airflow to prevent molten tin beads from damaging the protective lens 112. Then, the user installs the wind knife sealing plate 1142 in the fixing groove 11413. In order to increase the strength of the fixing groove 11413, a bump 11411 is provided at the bottom of the fixing groove 11413. Next, the user connects the wind knife 1141 to the wind knife sealing plate 1142 with screws. Subsequently, the user completes the installation of the laser soldering lens protection device 11.

[0045] The utility model provides a laser soldering lens protection device, which is provided with a lens holder, a protective lens, a fixing part, and an air knife assembly. The protective lens is arranged in the fixing hole of the lens holder, and the protective lens can be used to block molten tin beads. Thus, the protective lens can protect the laser soldering lens and effectively extend the service life of the laser soldering lens. In addition, the provision of the protective lens effectively solves the technical problem that the existing laser lens is easily contaminated and damaged by molten tin beads. In addition, the fixing part is connected to the lens holder. The air knife assembly is connected to one side of the fixing part, and the air knife assembly can be used to form a high-speed airflow to prevent the molten tin beads from damaging the protective lens. Therefore, the provision of the air knife assembly effectively extends the service life of the protective lens. Furthermore, the protective lens can protect the laser soldering lens for a long time.

[0046] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A laser soldering lens protection device for protecting the laser soldering lens of a laser welding head, characterized in that: It includes, A lens holder is provided at the upper end of the laser welding head and is connected to the laser welding head. A fixing hole is provided in the middle of the lens holder, and the position of the fixing hole corresponds to the position of the laser soldering lens. A protective lens is disposed in the fixing hole and connected to the lens holder to protect the laser soldering lens; a fixing member, provided at the upper end of the lens holder and connected to the lens holder, wherein a through hole is provided in the middle of the fixing member, and the through hole is communicated with the fixing hole; The air knife assembly is connected to one side of the fixing member and is used to form a high-speed airflow to prevent molten tin beads from damaging the protective lens.

2. The laser soldering lens protection device according to claim 1, characterized in that: The air knife assembly includes: An air knife is connected to the fixing member, wherein a side of the air knife close to the fixing member is provided with an air knife air hole for guiding high-speed airflow, and a side of the air knife away from the fixing member is provided with a fixing groove; An air knife sealing plate is arranged in the fixing groove and connected to the air knife; The air pipe joint is connected to the air knife sealing plate and is used for receiving the high-speed airflow.

3. The laser soldering lens protection device according to claim 1, characterized in that: The lens holder includes a fixing portion, the fixing hole is arranged in the middle of the fixing portion, a card slot is arranged at the bottom of the fixing piece, and the fixing portion is clamped in the card slot.

4. The laser soldering lens protection device according to claim 3, characterized in that: The lens holder also includes a connecting portion, which is located on one side of the fixing portion. The connecting portion includes two protrusions, which are respectively located at both ends of the connecting portion. The protrusions protrude from the fixing portion, and the protrusions are connected to the side wall of the fixing member by screws.

5. The laser soldering lens protection device according to claim 2, characterized in that: The air knife further includes a protrusion connected to the bottom of the fixing groove.

6. The laser soldering lens protection device according to claim 1, characterized in that: The lens holder also includes an annular limit block, which is located in the fixing hole, arranged along the circumference of the fixing hole, connected to the side wall of the fixing hole, and arranged at the lower end of the protective lens, and connected to the protective lens.

7. The laser soldering lens protection device according to claim 1, characterized in that: The plurality of air knife holes are evenly distributed along the length direction of the air knife.

8. The laser soldering lens protection device according to claim 1, characterized in that: The protective lens is connected to the lens holding frame via fixing glue.

9. The laser soldering lens protection device according to claim 1, characterized in that: The wind knife is connected to the wind knife sealing plate through screws, and the wind knife is connected to the fixing member through screws.

10. A laser welding head, characterized in that: The laser soldering lens protection device comprises the laser soldering lens protection device according to any one of claims 1 to 9.

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