Laser welding and pressure resistance testing all-in-one machine

By designing an integrated laser welding and withstand voltage testing machine, continuous operation of DC power module welding and withstand voltage testing was realized, solving the problems of large production area occupation and low efficiency, improving production efficiency and reducing costs.

CN224238504UActive Publication Date: 2026-05-15QINGDAO ZHITENG POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO ZHITENG POWER CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the current production of DC power modules, the welding and withstand voltage testing processes are separated, resulting in a large production area, low efficiency, and high cost.

Method used

Design a laser welding and pressure testing integrated machine. The machine uses a conveyor belt to transport DC power modules and combines clamping cylinders and a moving stand to achieve continuous operation of welding and pressure testing, adapting to the clamping needs of modules of various specifications.

Benefits of technology

It enables continuous operation of welding and pressure testing, reduces the occupation of production area, improves production efficiency, and reduces transportation costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a laser welding and pressure resistance testing all-in-one machine which comprises all-in-one machine equipment, a lower seat plate is arranged in the all-in-one machine equipment, and the front end and the rear end of the upper surface of the lower seat plate are each provided with a set of moving sliding grooves used for assisting a clamping seat frame to move left and right. Compared with the prior art, the all-in-one machine has the advantages that the all-in-one machine and the laser welding assembly are additionally arranged, conveying of the DC power module is completed through the conveying belt, the clamping air cylinder drives the clamping base to clamp the DC power module and take the DC power module down from the conveying belt, and then the DC power module is located below the laser welding assembly under driving of the clamping base frame; after welding is completed, the DC power supply module is conveyed to the rear side through the conveying belt, according to the operation, the clamping base clamps the DC power supply module to be located below the voltage withstanding tester to complete voltage withstanding testing, therefore, continuous operation of welding and voltage withstanding testing can be achieved, and by additionally arranging all-in-one machine equipment, the device can be suitable for being used for clamping the DC power supply modules of multiple specifications.
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Description

Technical Field

[0001] This utility model belongs to the field of DC power module manufacturing technology, and specifically relates to an integrated machine for laser welding and withstand voltage testing. Background Technology

[0002] A DC power module is an electronic device used for DC voltage conversion and power management. The production of a DC power module involves multiple processes. Soldering uses processes such as wave soldering or reflow soldering to connect the component leads to pads on the PCB board, forming a reliable electrical connection. After the DC power module completes its production through these processes, it undergoes multiple tests to ensure it meets relevant quality standards. The withstand voltage test checks whether the DC power module can withstand high voltage for a specified time without breakdown, flashover, or other insulation damage, ensuring its safety and reliability under normal operation and potential overvoltage conditions. However, in common production and testing scenarios, the soldering and testing processes are located in different places and may be discontinuous. After soldering, the DC power modules need to be collected and transferred between processes before the withstand voltage test is performed. This results in a large production area occupied by these two processes and reduced overall production efficiency and increased production costs due to the transfer between processes.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated machine for laser welding and pressure testing, so as to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a laser welding and withstand voltage testing integrated machine, comprising: an integrated machine device, wherein the integrated machine device is provided with a lower base plate, and both the front and rear ends of the upper surface of the lower base plate are provided with a set of moving slide grooves for assisting the left and right movement of the clamping frame, and two sets of clamping frames distributed left and right are provided inside the moving slide grooves, and a clamping cylinder is fixedly connected to the upper end of the clamping frame, and a clamping seat is fixedly connected to the end of the clamping cylinder away from the center of the integrated machine device, and a set of conveyor frames is fixedly connected to both the left and right ends above the lower base plate, and a conveyor belt for automatically conveying DC power modules is provided inside the conveyor frame, and a laser welding assembly for welding DC power modules is provided above the lower base plate, wherein a laser welding gun is provided in the laser welding assembly.

[0006] In a preferred embodiment, the integrated machine is further provided with an upper base plate, and the laser welding assembly is further provided with a left and right movable base, which is fixedly installed below the upper base plate.

[0007] In a preferred embodiment, a front-back moving seat is provided below the left and right moving seat, both of which are ball screw moving structures, and a lifting moving seat is provided below the front-back moving seat.

[0008] In a preferred embodiment, a lifting cylinder is provided inside the lifting and moving seat, and a welding frame is fixedly connected below the lifting cylinder. The welding frame is fixedly connected to the laser welding gun, and a withstand voltage tester for DC power module withstand voltage testing is fixedly connected to the rear side below the upper seat plate. The position adjustment of the laser welding gun in the XYZ directions is completed by the left and right moving seats, the front and rear moving seats and the lifting cylinder.

[0009] In a preferred embodiment, the clamping frame and the movable slide are movably engaged with each other, a displacement cylinder is fixedly connected to the end of the clamping frame away from the center of the integrated machine, and a connecting frame is fixedly connected to the side of the clamping frame away from the center of the integrated machine.

[0010] In a preferred embodiment, a set of clamping cylinders is also fixedly installed inside the connecting frame. A set of clamping seats is also fixedly connected to the clamping cylinders installed inside the connecting frame near the telescopic end, so that the clamping cylinders drive the clamping seats to clamp the DC power module, thereby completing the purpose of removing the DC power module from the conveyor belt and placing it above the conveyor belt.

[0011] In a preferred embodiment, a lower insulating rubber plate is fixedly connected to the lower inner end of the clamping seat, and an upper insulating rubber plate is provided above the lower insulating rubber plate.

[0012] In a preferred embodiment, the upper surface of the clamping seat is provided with an adjusting threaded hole, and an adjusting stud is screwed into the inner thread of the adjusting threaded hole. The adjusting stud and the upper insulating rubber plate are rotatably connected. The position of the upper insulating rubber plate and the distance between the upper and lower insulating rubber plates can be adjusted according to the specifications of the DC power module, so as to adapt to the clamping and use of DC power modules of various specifications.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By adding an integrated machine and laser welding components, the DC power module is transported via a conveyor belt. First, the clamping cylinder drives the clamping seat to clamp the DC power module and remove it from the conveyor belt. Then, under the drive of the clamping seat frame, the DC power module is positioned under the laser welding components. After welding is completed, it is transported to the rear via the conveyor belt. Following the above operation, the clamping seat clamps the DC power module and positions it under the withstand voltage tester to complete the withstand voltage test, thereby enabling continuous operation of welding and withstand voltage testing.

[0015] 2. By adding an integrated machine, the position of the upper insulating rubber plate can be adjusted according to the specifications of the DC power module, and the distance between the upper and lower insulating rubber plates can be adjusted to accommodate the clamping of DC power modules of various specifications. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a laser welding and pressure testing integrated machine according to the present invention.

[0018] Figure 2 This is a schematic diagram of the rear structure of the integrated machine equipment in the laser welding and pressure testing integrated machine of this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 for Figure 3 A schematic diagram of the structure with the adjusting stud removed.

[0021] Figure 5 This is a schematic diagram of the front structure of the integrated machine equipment in the laser welding and pressure testing integrated machine of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the laser welding component in the laser welding and pressure testing integrated machine of this utility model.

[0023] In the diagram, 100 is the integrated machine, 101 is the lower base plate, 102 is the upper base plate, 103 is the moving slide, 104 is the shifting cylinder, 105 is the clamping frame, 106 is the connecting frame, 107 is the clamping cylinder, 108 is the clamping seat, 109 is the lower insulating rubber plate, 110 is the upper insulating rubber plate, 111 is the adjusting threaded hole, 112 is the adjusting stud, 113 is the conveyor frame, and 114 is the conveyor belt.

[0024] 200-Laser welding assembly, 201-Left and right movable seat, 202-Front and rear movable seat, 203-Lifting movable seat, 204-Welding frame, 205-Laser welding gun. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 As the first embodiment of this utility model:

[0027] A laser welding and pressure testing integrated machine includes: an integrated machine 100, in which a lower base plate 101 is provided, and a set of movable slide grooves 103 for assisting the left and right movement of the clamping frame 105 are provided at both the front and rear ends of the upper surface of the lower base plate 101.

[0028] The inner side of the movable slide 103 is provided with two sets of clamping seats 105 distributed left and right. The upper end of the clamping seat 105 is fixedly connected to a clamping cylinder 107, and the end of the clamping cylinder 107 away from the center of the integrated machine 100 is fixedly connected to a clamping seat 108.

[0029] A set of conveyor frames 113 are fixedly connected to both the left and right ends above the lower base plate 101. The inner side of the conveyor frame 113 is provided with a conveyor belt 114 for automatically conveying DC power modules. A laser welding assembly 200 for welding DC power modules is provided above the lower base plate 101. A laser welding gun 205 is provided in the laser welding assembly 200.

[0030] The all-in-one machine 100 is also provided with an upper base plate 102, and the laser welding assembly 200 is also provided with a left and right movable base 201, which is fixedly installed below the upper base plate 102.

[0031] Below the left and right movable seat 201 is a front and back movable seat 202. Both the left and right movable seat 201 and the front and back movable seat 202 are ball screw moving structures. Below the front and back movable seat 202 is a lifting movable seat 203.

[0032] A lifting cylinder is provided inside the lifting and moving base 203. A welding frame 204 is fixedly connected below the lifting cylinder. The welding frame 204 is fixedly connected to the laser welding gun 205. A withstand voltage tester for DC power module withstand voltage testing is fixedly connected to the rear side below the upper base plate 102. (The specific model of the withstand voltage tester can be any existing mature equipment on the market, as long as it meets the requirements of this utility model. Its related connection circuits and control methods all use existing technology and will not be described in detail here.) The position adjustment of the laser welding gun in the XYZ directions is completed by the left and right moving base, the front and rear moving base and the lifting cylinder.

[0033] The clamping frame 105 and the movable slide 103 are movably engaged with each other. A displacement cylinder 104 is fixedly connected to one end of the clamping frame 105 away from the center of the integrated machine 100, and a connecting frame 106 is fixedly connected to the other side of the clamping frame 105 away from the center of the integrated machine 100.

[0034] A set of clamping cylinders 107 is also fixedly installed inside the connecting frame 106. A set of clamping seats 108 is also fixedly connected to the clamping cylinders 107 installed inside the connecting frame 106 near the telescopic end, so that the clamping cylinders 107 drive the clamping seats 108 to clamp the DC power module, thereby completing the purpose of removing the DC power module from the conveyor belt 114 and placing it above the conveyor belt 114.

[0035] A lower insulating rubber plate 109 is fixedly connected to the lower inner side of the clamping base 108, and an upper insulating rubber plate 110 is provided above the lower insulating rubber plate 109.

[0036] Specifically, the user places the DC power module to be welded above the front side of the conveyor belt 114 to achieve the purpose of automatic rearward conveying. After moving to the welding position, the clamping cylinder 107 drives the clamping seat 108 to clamp the DC power module, and the upper insulating rubber plate 110 and the lower insulating rubber plate 109 directly contact the DC power module. Then, the shifting cylinder 104 is controlled to drive the clamping seat frame 105 to move left and right along the moving slide 103 to below the laser welding assembly 200. The position adjustment of the laser welding gun in the XYZ direction is completed by the left and right moving seats, the front and rear moving seats and the lifting cylinder, so that the laser welding gun 205 can complete the welding of the DC power module.

[0037] Secondly, after welding is completed, the DC power module is moved by the clamping bracket 105 to place the DC power module directly above the conveyor belt 114. The clamping force is removed and the DC power module is placed above the conveyor belt 114 to continue conveying. Then, after moving to the withstand voltage test station, the withstand voltage test of the DC power module is completed in the same way as above, so that welding and withstand voltage testing can be carried out continuously.

[0038] Please see Figures 1-5 As a second embodiment of this utility model:

[0039] The upper surface of the clamping base 108 is provided with an adjustment threaded hole 111. An adjustment stud 112 is screwed into the inner thread of the adjustment threaded hole 111. The adjustment stud 112 and the upper insulating rubber plate 110 are rotatably connected. The position of the upper insulating rubber plate 110 is adjusted according to the specifications of the DC power module, and the distance between the upper insulating rubber plate 110 and the lower insulating rubber plate 109 is adjusted.

[0040] Based on the first embodiment described above, further, in the production of DC power modules involving the production of DC power modules of different specifications, the position of the upper insulating rubber plate 110 is adjusted according to the specifications of the DC power module, and the distance between the upper insulating rubber plate 110 and the lower insulating rubber plate 109 is adjusted, so as to adapt to the clamping and use of DC power modules of multiple specifications, and to assist in the production of DC power modules.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser welding and withstand voltage testing integrated machine, comprising: The integrated machine (100) is characterized in that: the integrated machine (100) is provided with a lower seat plate (101), and a set of moving slide grooves (103) for assisting the left and right movement of the clamping frame (105) are provided at both the front and rear ends of the upper surface of the lower seat plate (101). The inner side of the movable slide (103) is provided with two sets of clamping seats (105) distributed on the left and right. The upper end of the clamping seat (105) is fixedly connected to a clamping cylinder (107). The clamping cylinder (107) is fixedly connected to a clamping seat (108) at the end away from the center of the integrated machine (100). A set of conveyor frames (113) are fixedly connected to the left and right ends above the lower base plate (101). The inner side of the conveyor frame (113) is provided with a conveyor belt (114) for automatically conveying DC power modules. A laser welding assembly (200) for welding DC power modules is provided above the lower base plate (101). A laser welding gun (205) is provided in the laser welding assembly (200).

2. The laser welding and withstand voltage testing integrated machine as described in claim 1, characterized in that: The integrated machine (100) is also provided with an upper base plate (102), and the laser welding assembly (200) is also provided with a left and right movable base (201), which is fixedly installed below the upper base plate (102).

3. The laser welding and withstand voltage testing integrated machine as described in claim 2, characterized in that: Below the left and right movable seat (201) is a front and back movable seat (202). Both the left and right movable seat (201) and the front and back movable seat (202) are ball screw moving structures. Below the front and back movable seat (202) is a lifting movable seat (203).

4. The laser welding and withstand voltage testing integrated machine as described in claim 3, characterized in that: The lifting moving seat (203) is provided with a lifting cylinder on the inner side. A welding frame (204) is fixedly connected below the lifting cylinder. The welding frame (204) is fixedly connected to a laser welding gun (205). A withstand voltage tester for DC power module withstand voltage test is fixedly connected to the rear side below the upper seat plate (102).

5. The laser welding and withstand voltage testing integrated machine as described in claim 1, characterized in that: The clamping frame (105) and the movable slide (103) are movably fitted together. A displacement cylinder (104) is fixedly connected to one end of the clamping frame (105) away from the center of the integrated machine (100). A connecting frame (106) is fixedly connected to the side of the clamping frame (105) away from the center of the integrated machine (100).

6. The laser welding and withstand voltage testing integrated machine as described in claim 5, characterized in that: A set of clamping cylinders (107) is also fixedly installed on the inner side of the connecting frame (106), and a set of clamping seats (108) is also fixedly connected to the clamping cylinders (107) installed on the inner side of the connecting frame (106) near the telescopic end.

7. The laser welding and withstand voltage testing integrated machine as described in claim 6, characterized in that: The lower end of the inner side of the clamping seat (108) is fixedly connected to a lower insulating rubber plate (109), and an upper insulating rubber plate (110) is provided above the lower insulating rubber plate (109).

8. The laser welding and withstand voltage testing integrated machine as described in claim 7, characterized in that: The upper surface of the clamping seat (108) is provided with an adjustment threaded hole (111), and an adjustment stud (112) is screwed into the inner side of the adjustment threaded hole (111). The adjustment stud (112) and the upper insulating rubber plate (110) are rotatably connected.