Rapidly assembled and disassembled laser head protection device and solder ball laser welding equipment

Abstract

The utility model discloses a laser head protection device capable of being rapidly disassembled and assembled and solder ball laser welding equipment, the laser head protection device comprises a bearing plate, an installation plate, a lens and a pressing plate, the bearing plate is fixedly installed at a laser head, a sliding groove is formed in the bearing plate, the lens is arranged on the installation plate, the pressing plate is installed on the installation plate and presses the lens, and the bearing plate is fixedly installed on the installation plate. The mounting plate is provided with sliding rails matched with the sliding grooves, and the sliding rails of the mounting plate slide on the sliding grooves, so that the mounting plate is mounted on the bearing plate or separated from the bearing plate. The slide rails of the mounting plate slide on the slide grooves of the bearing plate, so that the mounting plate is mounted on the bearing plate or separated from the bearing plate, when the lens needs to be replaced, after shutdown, only the mounting plate and the lens and the pressing plate on the mounting plate need to slide out, and then the mounting plate with a new lens is mounted on the bearing plate, so that replacement of the lens is realized; the lens replacement process is simplified, the downtime is greatly saved, and meanwhile the problem that parts are scrapped due to thread abrasion does not exist.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of laser welding protection devices, and in particular to a quick-disassembly laser head protection device and solder ball laser welding equipment. Background Art

[0002] Laser solder ball welding is an advanced welding technology that uses laser as a heat source to melt the solder ball to achieve a tight bond between welded parts. Compared with traditional welding processes, laser solder ball welding has many advantages, such as fast heating speed, less heat input, and less heat impact.

[0003] During the laser solder ball welding process, the laser melts the solder ball, then wets and attaches it to the pad to form a solder joint. The advantages of this welding method include high welding accuracy, high efficiency, non-contact heating, green and pollution-free, etc. In addition, laser solder ball welding is also characterized by automation and good consistency, which can greatly improve production efficiency and product quality.

[0004] In the laser solder ball welding device, since the solder ball will splash when it melts, in order to prevent the splashing tin from falling on the window of the laser head, a protective lens needs to be set between the laser head and the workpiece to protect the laser head. Currently, the common protective device in the industry is to set the protective lens between a mounting seat cover plate, and then fix the entire protective device to the laser head through threads.

[0005] During the solder ball laser welding process, the tin splashed after the solder ball explodes will quickly cover the lens. Therefore, the lens of the protective device needs to be replaced frequently. Currently, when replacing the protective lens, it is necessary to stop the machine and unscrew the fixing screws of the protective device first, then replace the lens and then screw the fixing screws to fix the protective device to the laser head. The replacement process is cumbersome and time-consuming. In addition, since the screws need to be frequently disassembled and assembled, the fixing threads are easily damaged, resulting in the scrapping of parts. Utility Model Content

[0006] The embodiments of the utility model provide a lens protection device and solder ball laser welding equipment that can be quickly disassembled and assembled, so as to solve the technical problems that the lens replacement process of the laser head protection device in the current solder ball laser welding is complicated and time-consuming, and the fixing thread of the parts is easily damaged, resulting in the scrapping of the parts.

[0007] To achieve the above-mentioned objectives, in the first aspect, an embodiment of the utility model provides a quickly disassembled laser head protection device, comprising a carrying plate, a mounting plate, a lens and a pressure plate, wherein the carrying plate is fixedly mounted on the laser head, a slide groove is provided on the carrying plate, the lens is provided on the mounting plate, the pressure plate is installed on the mounting plate and presses the lens, a slide rail matched with the slide groove is provided on the mounting plate, and the slide rail of the mounting plate slides on the slide groove, so that the mounting plate is installed on the carrying plate or detached from the carrying plate.

[0008] Preferably, the carrier plate is provided with a carrier plate through hole for allowing the laser to pass through, and the mounting plate and the pressure plate are also provided with through holes. When the mounting plate is mounted on the carrier plate, the carrier plate through hole is coaxial with the through holes of the mounting plate and the pressure plate.

[0009] Preferably, the laser head protection device further comprises an air pipe joint, the air pipe joint is mounted on the supporting plate, and the air pipe joint is connected to the through hole of the supporting plate.

[0010] Preferably, the area of ​​the lens is larger than the through holes of the mounting plate and the pressing plate, and the area of ​​the lens is also larger than the through holes of the supporting plate.

[0011] Preferably, the laser head protection device further comprises a ball plunger, wherein the ball plunger is inserted into the mounting plate, and a V-shaped groove is provided on the bearing plate. When the mounting plate is mounted on the bearing plate, the ball plunger is partially inserted into the V-shaped groove.

[0012] Preferably, the mounting plate is provided with an arc-shaped groove for placing the lens, and when the lens is arranged in the arc-shaped groove, the lens partially protrudes from the mounting plate.

[0013] Preferably, the mounting plate and the pressing plate are connected via an adjusting screw, and the lens can be placed in a rotatable / non-rotatable state by adjusting the adjusting screw.

[0014] Preferably, the mounting plate is provided with a mounting plate annular groove for accommodating a sealing ring, and the bearing plate is provided with a bearing plate annular groove for accommodating a sealing ring.

[0015] Preferably, when the sealing ring is arranged in the annular groove of the mounting plate or the annular groove of the bearing plate, the top of the sealing ring is higher than the top of the annular groove of the mounting plate or the annular groove of the bearing plate.

[0016] In the second aspect, an embodiment of the utility model also provides a solder ball laser welding device, including a laser generator for generating laser, a laser head for emitting laser, and the laser head protection device described in the first aspect, wherein the laser head is connected to the laser generator, and the laser head protection device is installed at the laser head so that the laser is emitted after passing through the lens.

[0017] The embodiments of the utility model have the following beneficial effects: in the quick-disassembly and assembly laser head protection device of the embodiments of the utility model, the mounting plate is installed on the carrying plate or detached from the carrying plate by sliding the slide rail of the mounting plate on the slide groove of the carrying plate. When the lens needs to be replaced, after shutdown, only the mounting plate and the lens and the pressure plate thereon need to be slid out, and then the mounting plate with the new lens is installed on the carrying plate, thus realizing the replacement of the lens. It simplifies the lens replacement process and greatly saves downtime. At the same time, there is no problem of parts being scrapped due to thread wear.

[0018] In the above embodiments, the solder ball laser welding equipment and the corresponding laser head protection device embodiments belong to the same concept, and thus have the same technical effects as the corresponding laser head protection device embodiments, which will not be described in detail here.

[0019] In addition to the above-described purposes, features and advantages, the embodiments of the present utility model have other purposes, features and advantages. The embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the embodiments of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 It is a structural schematic diagram of a laser head protection device of a preferred embodiment of the utility model;

[0022] Figure 2 yes Figure 1 Exploded diagram of

[0023] Figure 3 It is a structural schematic diagram of a carrier plate of a laser head protection device according to a preferred embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a mounting plate of a laser head protection device according to a preferred embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a ball head plunger of a laser head protection device in a preferred embodiment of the utility model.

[0026] The reference numerals are as follows:

[0027] 1. Loading plate; 11. Slide groove; 12. Through hole of loading plate; 13. V-shaped groove; 14. Annular groove of loading plate; 2. Mounting plate; 21. Slide rail; 22. Ball plunger; 23. Arc groove; 24. Annular groove of mounting plate; 3. Lens; 4. Pressure plate; 5. Air pipe joint; 6. Adjusting screw; 7. Sealing ring. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the technical solution of the utility model embodiment in conjunction with the accompanying drawings and specific embodiments of the specification. In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application should be the usual meanings understood by the general technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate the relative direction or positional relationship, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation to this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance. The similar words "one", "one" or "the" used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The words “include” or “comprising” and the like used in the description of this application mean that the elements or objects preceding the words include the elements or objects listed after the words and their equivalents, but do not exclude other elements or objects.

[0029] It should also be noted that, unless otherwise clearly specified and limited, the words "installed", "connected", "connected" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection 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, an indirect connection through an intermediate medium, or the internal connection of two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0030] like Figures 1 to 5As shown, the quick-disassembly and assembly laser head protection device of this embodiment includes a carrying plate 1, a mounting plate 2, a lens 3 and a pressing plate 4. The carrying plate 1 is fixedly mounted at the laser head, a slide groove 11 is provided on the carrying plate 1, the lens 3 is arranged on the mounting plate 2, the pressing plate 4 is installed on the mounting plate 2 and presses the lens 3, and a slide rail 21 adapted to the slide groove 11 is provided on the mounting plate 2. The slide rail 21 of the mounting plate 2 slides on the slide groove 11, so that the mounting plate 2 is installed on the carrying plate 1 or detached from the carrying plate 1.

[0031] During laser solder ball welding, the solder ball explodes after being heated, causing tin liquid to splash. In order to prevent the tin liquid from splashing onto the laser head and affecting the laser penetration, the laser head protection device of this embodiment sets the lens 3 for protecting the laser head between the laser head and the workpiece to be welded. Specifically, the laser head protection device of this embodiment slides on the slide groove 11 of the supporting plate 1 through the slide rail 21 of the mounting plate 2, so that the mounting plate 2 is installed on the supporting plate 1 or detached from the supporting plate 1. When the lens 3 needs to be replaced, after stopping the machine, it is only necessary to slide out the mounting plate 2 and the lens 3 and the pressure plate 4 thereon, and then install the mounting plate 2 with the new lens 3 on the supporting plate 1, so that the lens 3 is replaced, thereby simplifying the lens 3 replacement process and greatly saving downtime, reducing the original downtime of at least one minute to about 10 seconds, and there will be no problem of parts being scrapped due to thread wear.

[0032] In some embodiments, the carrier plate 1 is provided with a carrier plate through hole 12 for allowing the laser to pass through, and the mounting plate 2 and the pressure plate 4 are also provided with through holes. When the mounting plate 2 is installed on the carrier plate 1, the carrier plate through hole 12 is coaxial with the through holes of the mounting plate 2 and the pressure plate 4, thereby forming a complete channel for light to pass through between the pressure plate 4, the lens 3, the mounting plate 2 and the carrier plate 1, allowing the laser emitted by the laser head to pass through.

[0033] In some embodiments, an air pipe connector 5 is also included. The air pipe connector 5 is installed on the supporting plate 1, and the air pipe connector 5 is connected to the through hole 12 of the supporting plate.

[0034] The air pipe joint 5 is used to supply high-pressure gas to be blown into the through hole 12 of the carrier plate. When the solder ball explodes and splashes toward the lens 3, the high-pressure gas blown into the through hole 12 of the carrier plate from the air pipe joint 5 will blow part of the splashed tin liquid onto the side wall of the through hole 12 of the carrier plate, thereby reducing the splashing of the tin liquid onto the lens 3, slowing down the speed at which the lens 3 is contaminated by the tin liquid, and allowing the lens 3 to be used for a longer time.

[0035] In some embodiments, the area of ​​the lens 3 is larger than the through holes of the mounting plate 2 and the pressure plate 4, and the area of ​​the lens 3 is also larger than the through hole 12 of the supporting plate, so that the lens 3 completely covers the through hole 12 of the supporting plate and the through holes of the mounting plate 2 and the pressure plate 4, thereby achieving all-round protection for the laser head.

[0036] In some embodiments, a ball plunger 22 is also included, which is inserted into the mounting plate 2. A V-shaped groove 13 is provided on the supporting plate 1. When the mounting plate 2 is installed on the supporting plate 1, the ball plunger 22 is partially inserted into the V-shaped groove 13. The ball head part of the ball plunger 22 is inserted into the V-shaped groove 13, which can limit the movement of the mounting plate 2 and keep the lens 3 stable.

[0037] In some embodiments, an arc groove 23 for placing the lens 3 is provided on the mounting plate 2. When the lens 3 is placed in the arc groove 23, part of the lens 3 protrudes from the mounting plate 2. The mounting plate 2 and the pressure plate 4 are connected by an adjusting screw 6. By adjusting the adjusting screw 6, the lens 3 can be placed in a rotatable / non-rotatable state.

[0038] The arc groove 23 can limit the radial movement of the lens 3 to ensure that the lens 3 remains stable. The adjusting screw 6 is tightened to fix the mounting plate 2 and the pressure plate 4 together and firmly fix the lens 3 located between the mounting plate 2 and the pressure plate 4. After the lens 3 is contaminated by the tin liquid, the adjusting screw 6 can be loosened to rotate the lens 3 through the part of the lens 3 that exceeds the mounting plate 2, thereby replacing the light-transmitting area of ​​the lens 3, extending the service life of the lens 3 and making it more efficient.

[0039] In some embodiments, a mounting plate annular groove 24 for placing the sealing ring 7 is provided on the mounting plate 2, and a bearing plate annular groove 14 for placing the sealing ring 7 is provided on the bearing plate 1. When the sealing ring 7 is arranged in the mounting plate annular groove 24 or the bearing plate annular groove 14, the top of the sealing ring 7 is higher than the top of the mounting plate annular groove 24 or the bearing plate annular groove 14.

[0040] Since the sealing ring 7 is arranged in the annular groove 24 of the mounting plate or the annular groove 14 of the supporting plate, the top of the sealing ring 7 is higher than the top of the annular groove 24 of the mounting plate or the annular groove 14 of the supporting plate, when the mounting plate 2 slides into the supporting plate 1, the mounting plate 2 will squeeze the sealing ring 7 in the annular groove 14 of the supporting plate, so that there is damping between the mounting plate 2 and the supporting plate 1, and the sliding of the mounting plate 2 is limited after the mounting plate 2 is installed in place. When the lens 3 is placed on the mounting plate 2, the sealing ring 7 in the annular groove 24 of the mounting plate will also be squeezed, so that there is damping between the lens 3 and the mounting plate 2, thereby limiting the shaking of the lens 3.

[0041] The quick-disassembly and assembly laser head protection device provided in the above-mentioned embodiment of the present application removes the mounting plate 2, the lens 3 and the pressure plate 4 by sliding, which greatly saves the replacement time of the lens 3 compared with the current method of removing screws to disassemble and assemble the lens 3; it also applies radial force to the splashing tin liquid through gas to reduce the tin liquid falling on the lens 3; at the same time, the lens 3 can be rotated to replace the light-transmitting area by loosening the adjustment screw 6, which is faster than replacing the lens 3, and can also extend the use time of the lens 3 and save material costs.

[0042] On the other hand, an embodiment of the present application further provides a solder ball laser welding device, including a laser generator for generating laser, a laser head for emitting laser, and a quickly disassembled laser head protection device of an embodiment of the present application, wherein the laser head is connected to the laser generator, and the laser head protection device is installed at the laser head, so that the laser is emitted after passing through the lens 3, which can effectively prevent the laser head from being contaminated by splashing tin liquid and greatly reduce the time for replacing the lens.

[0043] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quick-disassembly laser head protection device, characterized in that: The invention comprises a bearing plate (1), a mounting plate (2), a lens (3) and a pressing plate (4); the bearing plate (1) is fixedly mounted on a laser head; a slide groove (11) is provided on the bearing plate (1); the lens (3) is arranged on the mounting plate (2); the pressing plate (4) is mounted on the mounting plate (2) and presses the lens (3); a slide rail (21) matched with the slide groove (11) is provided on the mounting plate (2); the slide rail (21) of the mounting plate (2) slides on the slide groove (11) so that the mounting plate (2) is mounted on the bearing plate (1) or detached from the bearing plate (1).

2. The quick-disassembly laser head protection device according to claim 1, characterized in that: The carrier plate (1) is provided with a carrier plate through hole (12) for allowing laser to pass through, and the mounting plate (2) and the pressing plate (4) are also provided with through holes. When the mounting plate (2) is mounted on the carrier plate (1), the carrier plate through hole (12) is coaxial with the through holes of the mounting plate (2) and the pressing plate (4).

3. The quick-disassembly laser head protection device according to claim 2, characterized in that: It also comprises an air pipe joint (5), wherein the air pipe joint (5) is mounted on the bearing plate (1), and the air pipe joint (5) is connected to the through hole (12) of the bearing plate.

4. The quick-disassembly laser head protection device according to claim 2, characterized in that: The area of ​​the lens (3) is larger than the through holes of the mounting plate (2) and the pressing plate (4), and the area of ​​the lens (3) is also larger than the through hole (12) of the supporting plate.

5. The quick-disassembly laser head protection device according to claim 1, characterized in that: It also comprises a ball plunger (22), wherein the ball plunger (22) is inserted into the mounting plate (2), and a V-shaped groove (13) is provided on the bearing plate (1). When the mounting plate (2) is mounted on the bearing plate (1), the ball plunger (22) is partially inserted into the V-shaped groove (13).

6. The quick-disassembly laser head protection device according to claim 1, characterized in that: The mounting plate (2) is provided with an arc-shaped groove (23) for placing the lens (3); when the lens (3) is arranged in the arc-shaped groove (23), a portion of the lens (3) protrudes from the mounting plate (2).

7. The quick-disassembly laser head protection device according to claim 1, characterized in that: The mounting plate (2) and the pressing plate (4) are connected via an adjusting screw (6), and the lens (3) can be placed in a rotatable / non-rotatable state by adjusting the adjusting screw (6).

8. The quick-detachable laser head protection device according to claim 1, characterized in that: The mounting plate (2) is provided with a mounting plate annular groove (24) for accommodating a sealing ring (7), and the carrying plate (1) is provided with a carrying plate annular groove (14) for accommodating a sealing ring (7).

9. The quick-detachable laser head protection device according to claim 8, characterized in that: When the sealing ring (7) is arranged in the mounting plate annular groove (24) or the bearing plate annular groove (14), the top of the sealing ring (7) is higher than the top of the mounting plate annular groove (24) or the bearing plate annular groove (14).

10. A solder ball laser welding device, characterized in that: It comprises a laser generator for generating laser light, a laser head for emitting laser light and a laser head protection device as claimed in any one of claims 1 to 9, wherein the laser head is connected to the laser generator and the laser head protection device is installed at the laser head so that the laser light is emitted after passing through the lens (3).

Images