Laser welding device for manufacturing flexible wires of various products

Abstract

The utility model relates to a laser welding device for manufacturing flexible wires of various products. The laser welding device comprises a bearing frame, a laser transmission assembly, an optical butt joint upper module, an optical butt joint lower module, an optical output head and a weldment mold frame. The laser transmission assembly is correspondingly connected with the optical butt joint upper module, the optical butt joint upper module is arranged and installed on the bearing frame, the optical butt joint lower module is arranged and installed on the welding mold frame, the optical butt joint lower module and the optical butt joint upper module are oppositely arranged, one end of the optical output head is connected with the optical butt joint lower module, and the other end of the optical output head is connected with the welding mold frame. And the other end is connected with the pressing die in the weldment die frame. The light butt joint structure enables light paths to be conveniently separated and butt-jointed, when flexible wires of various products are produced, the light conduction piece inserted on the pressing die is reserved on the pressing die and does not need to be pulled out and reintroduced, the welding piece die frame forms an independent structure and can be integrally replaced, the maintenance and replacement procedures of the laser light source are simplified, and the workload is reduced.

Description

Technical Field

[0001] The utility model relates to a laser welding device used for manufacturing flexible wires of various products, belonging to the technical field of laser welding equipment. Background Art

[0002] Laser welding technology belongs to fusion welding, which uses laser beam as energy to impact the weld joint to achieve the welding purpose.

[0003] Currently, there is a laser welding method that uses a light-transmitting element to guide several laser beams directly onto the contour line of the welding surface. During welding, the light is emitted simultaneously, generating heat at the weld seam, thereby melting the entire contour line of the welded product and bonding them together. This laser welding method is more commonly used in the welding of automobile taillights because of the large number of laser welding heads and the very short welding cycle. Figure 5 As shown, in existing laser welding devices of this type, the laser generator 2a' and the light-transmitting element 2b' are integrally connected, with the distal end of the light-transmitting element directly plugged into the die 8'. If the laser generator is damaged, the light-transmitting element must be removed, significantly increasing the workload for complex welding equipment and complicated processes. Furthermore, this structure is unsuitable for flexible production of multiple products. To change product types or alternately produce multiple products, the entire light-transmitting element must be removed, reinstalled, guided to the die welding contour of the product to be welded, and re-adjusted. This frequent replacement is not only time-consuming and labor-intensive, but also easily leads to unstable welding quality, failing to meet the requirements of high-efficiency, high-quality, intelligent, flexible manufacturing. Utility Model Content

[0004] The utility model aims to provide a laser welding device for manufacturing flexible wires of various products, so as to overcome the inconvenience caused by the existing integrated welding structure.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A laser welding device for manufacturing flexible wires of various products, comprising a carrier, a laser transmission component, an optical docking upper module, an optical docking lower module, an optical output head and a weldment mold frame.

[0007] The laser transmission components are the same in number as the upper optical docking modules and are connected one-to-one. The upper optical docking modules are arranged and mounted on the upper layer of the carrier. The weldment mold frame includes a connecting plate, a die and a mold.

[0008] The laser transmission assembly includes a laser generator and a light-conducting component connected thereto.

[0009] The optical docking down modules are arranged and mounted on the connecting plate of the welding mold frame. The number of the optical docking down modules is the same as that of the optical docking upper modules and their arrangement positions are consistent. The optical axes of the corresponding optical docking upper and lower modules coincide with each other. One end of the optical output head is connected to the optical docking down module as a whole, and the other end of the optical output head is connected to the die in the weldment mold frame.

[0010] Furthermore, in order to facilitate the docking between the upper and lower modules of the optical docking, the weldment mold frame also includes a push-pull mechanism, which is arranged below the connecting plate. When the push-pull mechanism is driven upward, the lower optical docking module can be moved upward and pressed and docked with the upper optical docking module to achieve efficient light transmission; when the push-pull mechanism is driven downward, the lower optical docking module can be moved downward and separated from the upper optical docking module.

[0011] Furthermore, the weldment mold frame also includes a pressurizing and lifting mechanism, which is installed between the connecting plate and the die. When the pressurizing and lifting mechanism is working, the die can press the weldment downward or move upward away from the weldment.

[0012] Furthermore, the upper optical docking module includes an optical docking positioning assembly and an upper support plate. The optical docking positioning assembly is fixed to the upper support plate, and the upper optical docking module is fixed to the support frame via the upper support plate. The lower optical docking module includes a floating joint assembly and a lower support plate. The floating joint assembly is mounted on the lower support plate, and an elastic component is installed at the bottom of the floating joint assembly. The floating joint assembly has a gap within the mounting hole of the lower support plate, allowing the floating joint assembly to move forward, backward, and left and right when the upper and lower optical docking modules are docked. The precise positioning of the optical axis and the floating clearance of the optical docking positioning assembly and the floating joint assembly ensure that the optical axis is accurately aligned when the upper and lower optical docking modules are closed without getting stuck, ensuring that the laser transmission energy loss is less than 5%. The elastic component is used to eliminate the gap in the floating joint assembly after positioning.

[0013] Furthermore, the lower support plate is provided with a positioning shaft, and the upper support plate is provided with an axis hole corresponding to the positioning shaft. The design of the positioning shaft and the axis hole ensures the precise positioning between the corresponding optical docking upper module and the optical docking lower module.

[0014] Furthermore, the total number of the light output heads is greater than the number required for arranging the welding surface tracks. The number of light output heads actually required can be selected according to the weldment tracks to adapt to weldments of different sizes.

[0015] Furthermore, each laser transmission assembly has a plurality of light-conducting components, and the optical docking module has the same number of docking ports connected to the light-conducting components in a one-to-one correspondence.

[0016] Furthermore, each optical pair docking module has a plurality of docking ports, and the number of the optical output heads is the same as the number of the docking ports and they are connected in a one-to-one correspondence.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model separates the laser generator and the light output head introduced into the welding surface track through the split structure of the optical docking upper module and the optical docking lower module, which simplifies the maintenance and replacement process of the laser light source and reduces the workload.

[0019] 2. Compared to conventional laser welding devices, this new device features an optical docking structure that allows for convenient separation and docking of optical paths. During flexible production of multiple products, the optical output head inserted into the die remains on the die, eliminating the need for removal and reinsertion. This allows the weldment die frame to form an independent structure that can be moved as a whole, facilitating complete die changes when changing products. This facilitates product changes or the alternating production of multiple products. This convenient replacement improves equipment utilization, reduces production costs, and meets the needs of high-efficiency, high-quality, intelligent flexible manufacturing.

[0020] 3. The number of light output heads provided in the present invention is greater than the number required for the actual product welding track. The actual number of light output heads used can be selected according to the size of the product and classified for dual use.

[0021] 4. The utility model can realize the precise docking between the upper and lower modules of the optical docking, has the characteristics of high efficiency and high automation, and is suitable for welding large-size products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a preferred embodiment of the present utility model.

[0023] Figure 2 This is a structural diagram of a welding mold frame involved in a preferred embodiment of the present utility model.

[0024] Figure 3 This is a schematic diagram of the optical docking structure involved in a preferred embodiment of the present utility model.

[0025] Figure 4 This is a schematic structural diagram of a laser transmission component involved in a preferred embodiment of the present utility model.

[0026] Figure 5 Schematic diagram of the structure of an existing integrated laser transmission component. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The purpose, technical solutions and advantages of the present invention will become more apparent from the following description. It should be noted that the embodiments described are preferred embodiments of the present invention, but not all embodiments.

[0028] Combine Figure 1 、 Figure 2 As shown, a laser welding device for manufacturing flexible wires of various products includes a carrier 1, a laser transmission component 2, an optical docking upper module 3, an optical docking lower module 4, a light output head 5 and a weldment mold frame 6.

[0029] The laser transmission components 2 are identical in number to the optical docking upper modules 3, and are connected one-to-one. The optical docking upper modules 3 are arranged and mounted on the upper layer of the support frame. The weldment mold frame 6 includes a connecting plate 7, a pressing die 8, and a mold 9. The laser transmission components 2 include a laser generator 2a and a light transmission component 2b connected thereto.

[0030] The optical docking modules 4 are arranged and installed on the connecting plate 7 of the welding mold frame. The number of optical docking modules 4 and the optical docking upper modules 3 are the same and the arrangement positions are consistent. The optical axes of the corresponding optical docking upper and lower modules coincide with each other. One end of the optical output head 5 is connected to the optical docking module 4 as a whole, and the other end of the optical output head 5 is connected to the die 8 in the weldment mold frame.

[0031] As a preferred solution, the weldment mold frame 6 also includes a pushing and pulling mechanism 10, which is arranged below the connecting plate 7. When the pushing and pulling mechanism 10 is driven upward, the optical docking lower module 4 can be moved upward and pressed and docked with the optical docking upper module 3 to achieve efficient light transmission; when the pushing and pulling mechanism 10 is driven downward, the optical docking module 4 can be moved downward and separated from the optical docking upper module 3.

[0032] The weldment die frame 6 preferably further includes a pressurizing and lifting mechanism 11, which is installed between the connecting plate 7 and the die 8. When the pressurizing and lifting mechanism is in operation, the die 8 can be pressed downward against the weldment 12 or moved upward away from the weldment 12. Both the pulling mechanism 10 and the pressurizing and lifting mechanism 11 can be hydraulic cylinders.

[0033] Combine Figure 1 and Figure 3The upper optical docking module 3 includes an optical docking positioning assembly 13 and an upper support plate 3a. The optical docking positioning assembly 13 is fixed to the upper support plate 3a. The upper optical docking module 3 is fixed to the support frame via the upper support plate 3a. The lower optical docking module 4 includes a floating joint assembly 14 and a lower support plate 4a. The floating joint assembly 14 is mounted on the lower support plate 4a. An elastic assembly 15 is installed at the bottom of the floating joint assembly. The floating joint assembly 14 has a gap within the mounting hole 4b. The floating joint assembly can move forward, backward, left, and right when the upper and lower optical docking modules are docked. To ensure precise positioning between the corresponding upper optical docking module 3 and the lower optical docking module 4, the elastic assembly 15 enables the floating joint assembly to move upward after positioning to eliminate the gap. The precise positioning of the optical axes and the floating gap of the optical docking positioning assembly 13 and the floating joint assembly 14 ensure that the optical axes are precisely aligned when the two are closed without getting stuck, ensuring that the laser transmission energy loss is less than 5%. The lower supporting plate 4a is provided with a positioning shaft 4c, and the upper supporting plate 3a is provided with an axis hole 3b corresponding to the positioning shaft 4c.

[0034] The total number of the light output heads 5 is greater than the number required for arranging the welding surface tracks. The number of light output heads actually required can be selected according to the weldment tracks to adapt to weldments of different sizes.

[0035] Example

[0036] refer to Figure 1 The present invention is applied to a welding device consisting of eight laser transmission components. Each laser transmission component has 10x5 optical transmission components, which are connected one-to-one with the 10x5 interfaces on the optical docking upper module. The corresponding optical docking lower modules are the same number and arranged in a consistent manner, ensuring precise docking. The optical docking upper and lower modules are designed with positioning shafts and shaft holes to ensure the precise positioning of each set of optical docking upper and lower modules. The optical docking upper and lower modules are designed with precise positioning of the optical axis and floating clearance of the optical docking positioning components and floating joint components. The floating joint component has a gap in the mounting hole of the lower support plate and can move forward, backward, left and right when docking with the optical docking positioning component, ensuring precise docking of the optical axis without jamming when the two are closed. The elastic component is used to eliminate the gap of the floating joint component after positioning. The eight sets of optical laser transmission components and the eight sets of 10x5 optical docking upper modules are fixed to the support frame, and the eight sets of 10x5 optical docking lower modules are fixed to the connecting plate of the weldment mold frame. The two are the same number and arranged in a consistent manner.

[0037] The above description is only an illustration of the preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Obviously, any technician familiar with the field can easily think of replacements or changes based on the above embodiments to obtain other embodiments, which should all be included in the scope of protection of the present invention.

Claims

1. A laser welding device for manufacturing flexible wires of various products, characterized by: It includes a carrier, a laser transmission component, an optical docking upper module, an optical docking lower module, an optical output head and a weldment mold frame. The laser transmission components are the same in number as the upper optical docking modules and are connected one-to-one. The upper optical docking modules are arranged and mounted on the upper layer of the carrier. The weldment mold frame includes a connecting plate, a die and a mold. The laser transmission assembly includes a laser generator and a light-conducting component connected thereto. The optical docking down modules are arranged and mounted on the connecting plate of the welding mold frame. The number of the optical docking down modules is the same as that of the optical docking upper modules and their arrangement positions are consistent. The optical axes of the corresponding optical docking upper and lower modules coincide with each other. One end of the optical output head is connected to the optical docking down module as a whole, and the other end of the optical output head is connected to the die in the weldment mold frame.

2. The laser welding device for manufacturing flexible wires of various products according to claim 1, characterized in that: The weldment mold frame also includes a push-pull mechanism, which is arranged below the connecting plate. When the push-pull mechanism is driven upward, the optical docking lower module can be moved upward and pressed and docked with the optical docking upper module to achieve efficient light transmission; when the push-pull mechanism is driven downward, the optical docking module can be moved downward and separated from the optical docking upper module.

3. The laser welding device for manufacturing flexible wires of various products according to claim 1, characterized in that: The weldment die frame further comprises a pressurizing and lifting mechanism, which is installed between the connecting plate and the die. When the pressurizing and lifting mechanism is in operation, the die can be pressed downward to press the weldment or moved upward to leave the weldment.

4. The laser welding device for manufacturing flexible wires of various products according to claim 1, characterized in that: The optical docking upper module includes an optical docking positioning component and an upper support plate, the optical docking positioning component is fixed on the upper support plate, the optical docking upper module is fixed to the carrier frame through the upper support plate, the optical docking lower module includes a floating joint component and a lower support plate, the floating joint component is installed on the lower support plate, an elastic component is installed at the bottom of the floating joint component, the floating joint component has a gap in the mounting hole of the lower support plate, and the floating joint component can move forward, backward, left and right when the optical docking upper and lower modules are docked.

5. The laser welding device for manufacturing flexible wires of various products according to claim 4, characterized in that: The lower supporting plate is provided with a positioning shaft, and the upper supporting plate is provided with an axis hole corresponding to the positioning shaft.

6. The laser welding device for manufacturing flexible wires of various products according to claim 1, characterized in that: The total number of the light output heads is greater than the number required for arranging the welding surface tracks. The number of light output heads actually required can be selected according to the weldment tracks to adapt to weldments of different sizes.

7. The laser welding device for manufacturing flexible wires of various products according to claim 1, characterized in that: Each laser transmission component has a plurality of light-conducting parts, and the optical docking upper module has the same number of docking ports connected to the light-conducting parts in a one-to-one correspondence.

8. The laser welding device for manufacturing flexible wires of various products according to claim 1, characterized in that: Each optical pair docking module has a plurality of docking ports, and the number of the optical output heads is the same as the number of the docking ports and they are connected in a one-to-one correspondence.

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