A copper strip welding machine for improving the welded joint with molybdenum steel

Abstract

This invention discloses a copper strip welding machine for improving welded joints using molybdenum steel, comprising a copper strip welding machine, a worktable, a lifting welding assembly, a fixed welding assembly, a copper strip fixing frame, and a moving frame assembly. The copper strip fixing frame includes a left copper strip fixing frame and a right copper strip fixing frame. The left copper strip fixing frame includes a vertical frame, a fixed horizontal plate mounted on the vertical frame, a mounting frame disposed on one side of the fixed horizontal plate, a threaded rod and a guide rod disposed inside the mounting frame, and a pressure plate mounted on the threaded rod and the guide rod. The pressure plate is provided with two pressure rollers. A drive motor is mounted at the bottom of the mounting frame, and a lifting limit switch is provided on one side of both ends of the threaded rod. This invention involves placing the two copper strip ends to be welded on the left and right copper strip fixing frames respectively. The drive motor rotates the threaded rod, causing the pressure plate to descend, thereby pressing and fixing the copper strip on the two pressure rollers on the pressure plate. This facilitates the lifting welding assembly and the fixed welding assembly to perform spot welding on the two copper strip ends.

Description

Technical Field

[0001] This invention relates to the field of welding machine technology, and specifically to a copper strip welding machine that improves the weld joint using molybdenum steel. Background Technology

[0002] Photovoltaic solder ribbon, also known as tin-plated copper ribbon or tin-coated copper ribbon, is divided into busbars and interconnecting strips. It is used to connect photovoltaic module cells and plays an important role in conducting electricity and concentrating. In the process of connecting photovoltaic solder ribbon, a welding machine is required. There are many types of welding machines, including single-point single-function, single-point dual-function, and single-point multi-function machines. Different types of welding machines have different welding functions and working efficiencies. Welding is the process of connecting metal parts using various fusible alloys (solder). The melting point of solder is lower than that of the material being welded, so the parts are welded without melting, through the intermolecular connections on their surfaces.

[0003] When welding copper strips, the copper strip welding machine needs to fix copper strips of different specifications for welding. However, the existing welding machine cannot limit and fix the copper strip in real time during the movement of the copper strip. This will result in poor quality of the finished copper strip and cannot guarantee the quality of the copper strip produced in batches. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a copper strip welding machine for improving the weld joint using molybdenum steel.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a copper strip welding machine for improving the weld joint with molybdenum steel, comprising a copper strip welding machine, a worktable disposed on the upper half of the copper strip welding machine, a lifting welding assembly disposed above the worktable, a fixed welding assembly disposed below the lifting welding assembly, a copper strip fixing frame disposed on the worktable, and a movable frame assembly disposed at the bottom of the worktable for moving the copper strip fixing frame; the copper strip fixing frame includes a left copper strip fixing frame and a right copper strip fixing frame, the left copper strip fixing frame includes a vertical frame, a fixed horizontal plate fixedly mounted on the vertical frame, a mounting frame disposed on one side of the fixed horizontal plate, a threaded rod and a guide rod disposed inside the mounting frame, a pressure plate mounted on the threaded rod and the guide rod, the pressure plate being provided with two pressure rollers, a drive motor for driving the threaded rod to rotate being mounted at the bottom of the mounting frame, and a lifting limit switch for limiting the lifting of the pressure plate being disposed on one side of both ends of the threaded rod.

[0006] Preferably, the left copper strip fixing bracket and the right copper strip fixing bracket have the same structure.

[0007] Preferably, the movable frame assembly includes a vertical plate installed at the bottom of the workbench, a rotating motor installed on one side of the vertical plate, a push threaded rod installed on the other side of the vertical plate and rotated by the rotating motor, slide rods arranged on both sides of the push threaded rod, a movable plate installed on the push threaded rod and slide rods, a left copper strip fixing bracket and a right copper strip fixing bracket installed on the top of the movable plate, and a movement limit switch for limiting the movement of the movable plate is provided on one side of both ends of the push threaded rod.

[0008] Preferably, the fixed welding assembly includes a fixed clamp, a fixed welding fixture mounted on the fixed clamp, and a lower molybdenum steel welding head mounted on the fixed welding fixture.

[0009] Preferably, the lifting welding assembly includes a telescopic cylinder, a telescopic cylinder fixing frame that surrounds the telescopic cylinder and is fixed on the copper strip welding machine, a movable welding fixture disposed at the output end of the telescopic cylinder, and an upper molybdenum steel welding head mounted on the movable welding fixture.

[0010] Preferably, the mobile welding fixture includes a fixture fixing seat installed at the output end of the telescopic cylinder, and a welding fixture block detachably installed on one side of the fixture fixing seat, the welding fixture block being composed of a male welding clamping block and a female welding clamping block.

[0011] Preferably, the male welding clamp has two inserts on one side and a mounting base on the other side, a first welding head mounting groove between the two inserts, a through hole in the middle of the first welding head mounting groove, and a plurality of fixing posts on the mounting base.

[0012] Preferably, one side of the female welding clamp is provided with two through holes, and a second welding head mounting groove is provided between the through holes.

[0013] Preferably, the clamp fixing seat is provided with a fixing hole opposite to the fixing post, and a contact connecting post is provided in the middle of the fixing hole.

[0014] Preferably, the fixed welding fixture and the movable welding fixture have the same structure.

[0015] The main technical advantages of this invention are as follows: By placing the two copper strip ends to be welded on the left and right copper strip fixing frames respectively, the drive motor rotates the threaded rod to lower the pressure plate. When the pressure plate touches the lifting limit switch on one side of the bottom of the threaded rod, the pressure plate stops descending, thereby pressing and fixing the copper strip with the two pressure rollers on the pressure plate. When it is necessary to remove the welded copper strip, simply reverse the drive motor to raise the pressure plate, and the welded copper strip can be removed. This facilitates the lifting welding assembly and the fixing welding assembly to perform point welding on the two copper strip ends. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a copper strip welding machine for improving the weld joint using molybdenum steel, according to the present invention.

[0017] Figure 2 for Figure 1 Side view of a copper strip welding machine with improved weld joints using molybdenum steel;

[0018] Figure 3 for Figure 1 Structural diagram of the copper strip fixing bracket;

[0019] Figure 4 for Figure 3 Top view of the left-middle copper strip fixing bracket;

[0020] Figure 5 for Figure 1 Top view of the mobile frame assembly;

[0021] Figure 6 for Figure 1 A perspective view of the fixed welding fixture and the movable welding fixture in the middle;

[0022] Figure 7 for Figure 6 A three-dimensional view of the welding fixture block. Detailed Implementation

[0023] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered.

[0024] In this embodiment, it should be understood that the terms "middle," "upper," "lower," "top," "right side," "left end," "above," "back," "center," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] Furthermore, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art. Therefore, it will not be described in detail in this embodiment.

[0026] A copper strip welding machine that improves weld joints using molybdenum steel, such as Figure 1-2As shown, the system includes a copper strip welding machine 1, a worktable 2 located on the upper part of the copper strip welding machine 1, a lifting welding assembly 3 located above the worktable 2, a fixed welding assembly 4 located below the lifting welding assembly 3, a copper strip fixing frame 5 located on the worktable 2, and a movable frame assembly 6 located at the bottom of the worktable 2 for moving the copper strip fixing frame 5. Two copper strips to be welded are fixed together by the left copper strip fixing frame 51 and the right copper strip fixing frame 52. Then, the lifting welding assembly 3 and the fixed welding assembly 4 weld the ends of the two copper strips together. During the welding process, the movable frame assembly 6 slowly moves the copper strip fixing frame 5, causing the two copper strips to be welded together at the weld points.

[0027] like Figure 3-4 As shown, the copper strip fixing frame 5 includes a left copper strip fixing frame 51 and a right copper strip fixing frame 52. The left copper strip fixing frame 51 includes a vertical frame 511, a fixed horizontal plate 512 fixedly installed on the vertical frame 511, a mounting frame 513 disposed on one side of the fixed horizontal plate 512, a threaded rod 514 and a guide rod 515 disposed inside the mounting frame 513, and a pressing plate 516 installed on the threaded rod 514 and the guide rod 515. The pressing plate 516 is provided with a threaded hole that is threadedly connected to the threaded rod 514 and a through hole that is slidably connected to the guide rod 515. The pressing plate 516 is provided with two pressing rollers 517. After the pressing plate 516 descends, the pressing rollers 517 can press the copper strip. The bottom of the mounting frame 513 is equipped with a drive motor 518 for driving the threaded rod 514 to rotate. The drive motor 518 can drive the threaded rod 514 to rotate in both directions. A lifting limit switch 519 is provided on one side of each end of the threaded rod 514 to limit the lifting of the pressure plate 516. Both the drive motor 518 and the lifting limit switch 519 are externally connected to a PLC controller. When the pressure plate 516 contacts the lifting limit switch 519 on one side of each end of the threaded rod 514, the drive motor 518 will stop rotating. The left copper strip fixing bracket 51 and the right copper strip fixing bracket 52 have the same structure.

[0028] like Figure 5As shown, the movable frame assembly 6 includes a vertical plate 61 mounted on the bottom of the workbench 2, a rotary motor 62 mounted on one side of the vertical plate 61, and a push threaded rod 63 mounted on the other side of the vertical plate 61 and rotated by the rotary motor 62. The rotary motor 62 can rotate the push threaded rod 63 in both directions. Slide rods 64 are provided on both sides of the push threaded rod 63, and a movable plate 65 is mounted on the push threaded rod 63 and slide rods 64. The left copper strip fixing bracket 51 and the right copper strip fixing bracket 52 are mounted on the top of the movable plate 65. A movement limit switch 66 is provided on one side of each end of the push threaded rod 63 to restrict the movement of the movable plate 65. Both the rotary motor 62 and the movement limit switch 66 are externally connected to a PLC controller. When the movable plate 65 contacts the movement limit switch 66 on one side of each end of the push threaded rod 63, the rotary motor 62 stops rotating.

[0029] like Figure 6 Combination Figure 1 As shown, the lifting welding assembly 3 includes a telescopic cylinder 31, a telescopic cylinder fixing frame 32 that surrounds the telescopic cylinder 31 and is fixed to the copper strip welding machine 1, a movable welding fixture 33 located at the output end of the telescopic cylinder 31, and an upper molybdenum steel welding head 34 mounted on the movable welding fixture 33. The fixed welding assembly 4 includes a fixed clamp 41, a fixed welding fixture 42 mounted on the fixed clamp 41, and a lower molybdenum steel welding head 43 mounted on the fixed welding fixture 42. During welding, the two copper strips to be welded are located at the top of the lower molybdenum steel welding head 43. The telescopic cylinder 31 pushes the movable welding fixture 33 down, allowing the upper molybdenum steel welding head 34 to contact the two copper strips to be welded, thereby achieving welding.

[0030] like Figure 7 As shown, the movable welding fixture 33 includes a fixture fixing seat 331 installed at the output end of the telescopic cylinder 31. The fixture fixing seat 331 has a fixing hole 3311 opposite to the fixing post 33215, and a contact connecting post 3312 is disposed in the middle of the fixing hole 3311. The contact connecting post 3312 is connected to the copper strip welding machine. When the welding fixture block 332 is mounted on the fixture fixing seat 331, the fixing post 33215 is inserted into the fixing hole 3311, so that the welding fixture block 332 is fixed on the fixture fixing seat 331. The contact connecting post 3312 contacts the upper molybdenum steel welding head 34 through the through hole 33214.

[0031] A welding clamp block 332 is detachably mounted on one side of the clamp fixing seat 331. The welding clamp block 332 consists of a male welding clamp block 3321 and a female welding clamp block 3322. One side of the male welding clamp block 3321 has two insertion posts 33211, each with threaded holes. The other side of the male welding clamp block 33211 has a mounting seat 33212, a first welding head mounting groove 33213 between the two insertion posts 33211, a through hole 33214 in the middle of the first welding head mounting groove 33213, and several fixing posts 33215 on the mounting seat 33212. One side of the female welding clamp block 3322 has two through holes 33221, and a second welding head mounting groove 33222 between the through holes 33221. Specifically, the insert 33211 on the male welding clamp 33211 can be inserted into the insertion hole 33221 of the female welding clamp 3322, and then screwed into the insertion hole 33221 by bolts, so that the male welding clamp 33211 and the female welding clamp 3322 are fixed together. The first welding head mounting groove 33213 and the second welding head mounting groove 33222 can fix the lower molybdenum steel welding head 43. The fixed welding fixture 42 and the movable welding fixture 33 have the same structure.

[0032] Working principle: First, place the two copper strips to be welded on the left copper strip fixing frame 51 and the right copper strip fixing frame 52 respectively. The drive motor 518 drives the threaded rod 514 to rotate, causing the pressure plate 516 to rise. When the pressure plate 516 contacts the lifting limit switch 519 on the top side of the threaded rod 514, the drive motor 518 stops rotating. After the copper strip is placed, start the drive motor 518 to drive the threaded rod 514 to rotate in the opposite direction, causing the pressure plate 516 to fall. When the pressure plate 516 contacts the lifting limit switch 519 on the bottom side of the threaded rod 514, the pressure roller 517 can press the copper strip after the pressure plate 516 falls.

[0033] Secondly, during welding, the two copper strips to be welded are located at the top of the lower molybdenum steel welding head 43. The telescopic cylinder 31 pushes the moving welding fixture 33 down, so that the upper molybdenum steel welding head 34 can contact the two copper strips to be welded, thereby achieving welding.

[0034] Finally, the rotating motor 62 can rotate to push the threaded rod 63, so that the threaded rod 63 can drive the moving plate 65 to move. The left copper strip fixing bracket 51 and the right copper strip fixing bracket 52 are mounted on the moving plate 65. When the moving plate 65 moves, it pushes the two copper strips to be welded to move, so that the ends of the two copper strips can be welded evenly.

[0035] The main technical advantages of this invention are as follows: By placing the two copper strip ends to be welded on the left and right copper strip fixing frames respectively, the drive motor rotates the threaded rod to lower the pressure plate. When the pressure plate touches the lifting limit switch on one side of the bottom of the threaded rod, the pressure plate stops descending, thereby pressing and fixing the copper strip with the two pressure rollers on the pressure plate. When it is necessary to remove the welded copper strip, simply reverse the drive motor to raise the pressure plate, and the welded copper strip can be removed. This facilitates the lifting welding assembly and the fixing welding assembly to perform point welding on the two copper strip ends.

[0036] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A copper strip welding machine for improving weld joints with molybdenum steel, comprising a copper strip welding machine, a worktable disposed on the upper half of the copper strip welding machine, a lifting welding assembly disposed above the worktable, a fixed welding assembly disposed below the lifting welding assembly, a copper strip fixing frame disposed on the worktable, and a movable frame assembly disposed at the bottom of the worktable for moving the copper strip fixing frame; characterized in that: The copper strip fixing frame includes a left copper strip fixing frame and a right copper strip fixing frame. The left copper strip fixing frame includes a vertical frame, a fixed horizontal plate fixedly installed on the vertical frame, a mounting frame disposed on one side of the fixed horizontal plate, a threaded rod and a guide rod disposed inside the mounting frame, a pressure plate mounted on the threaded rod and the guide rod, the pressure plate being provided with two pressure rollers, a drive motor for driving the threaded rod to rotate being installed at the bottom of the mounting frame, and a lifting limit switch for limiting the lifting of the pressure plate being provided on one side of both ends of the threaded rod. The upper molybdenum steel welding head is mounted on a movable welding fixture; The mobile welding fixture includes a fixture fixing seat installed at the output end of the telescopic cylinder, and a welding fixture block detachably installed on one side of the fixture fixing seat. The welding fixture block consists of a male welding clamp block and a female welding clamp block. Two insertion posts are provided on one side of the male welding clamp, and a mounting base is provided on the other side of the male welding clamp, with several fixing posts provided on the mounting base; The clamp fixing base is provided with fixing holes corresponding to the fixing posts, and a contact connecting post is provided in the middle of the fixing holes; The contact connection post is connected to the copper strip welding machine, and the contact connection post contacts the upper molybdenum steel welding head through the through hole.

2. The copper strip welding machine for improving the weld joint with molybdenum steel as described in claim 1, characterized in that: The left and right copper strip fixing frames have the same structure.

3. The copper strip welding machine for improving welded joints with molybdenum steel as described in claim 2, characterized in that: The movable frame assembly includes a vertical plate installed at the bottom of the workbench, a rotating motor installed on one side of the vertical plate, a push threaded rod installed on the other side of the vertical plate and rotated by the rotating motor, sliding rods arranged on both sides of the push threaded rod, a movable plate installed on the push threaded rod and the sliding rod, a left copper strip fixing bracket and a right copper strip fixing bracket installed on the top of the movable plate, and a movement limit switch for limiting the movement of the movable plate is provided on one side of both ends of the push threaded rod.

4. The copper strip welding machine for improving the weld joint with molybdenum steel as described in claim 1, characterized in that: The fixed welding assembly includes a fixed clamp, a fixed welding fixture mounted on the fixed clamp, and a lower molybdenum steel welding head mounted on the fixed welding fixture.

5. The copper strip welding machine for improving the weld joint with molybdenum steel as described in claim 4, characterized in that: The lifting welding assembly includes a telescopic cylinder, a telescopic cylinder fixing frame that surrounds the telescopic cylinder and is fixed on the copper strip welding machine, and a movable welding fixture set at the output end of the telescopic cylinder.

6. The copper strip welding machine for improving welded joints with molybdenum steel as described in claim 5, characterized in that: It also includes a first welding head mounting groove disposed between the two inserts, and a through hole disposed in the middle of the first welding head mounting groove.

7. The copper strip welding machine for improving welded joints with molybdenum steel as described in claim 6, characterized in that: Two through holes are provided on one side of the female welding clamp, and a second welding head mounting groove is provided between the through holes.

8. A copper strip welding machine for improving welded joints with molybdenum steel as described in any one of claims 5-6, characterized in that: The fixed welding fixture and the movable welding fixture have the same structure.

Images