A transistor electric welder

Abstract

The utility model relates to a transistor electric welding machine belongs to electric welding machine technical field. This transistor electric welding machine, include: body and set up in the welding mechanism of body surface, the bottom of welding mechanism is provided with upper electrode, the lower portion of upper electrode is provided with the lower electrode of installation in workstation, the position adjusting assembly and clamping limiting assembly that limit mechanism includes installation in the surface of lower electrode, be provided with connecting block between clamping limiting assembly and position adjusting assembly, through setting up the clamping mechanism in the surface of lower electrode, in use, the staff only needs to quickly card into two groups of clamping blocks between battery, can realize the automatic alignment of battery and upper electrode. The structure cooperation connecting block in the slide of slide rail, realize the quick positioning of battery. Reduce the dependence of alignment operation to personnel proficiency, greatly alleviate the operation burden and work intensity of staff.

Description

Technical Field

[0001] This utility model relates to the field of electric welding machine technology, and in particular to a transistor electric welding machine. Background Technology

[0002] To increase the total capacity and discharge capacity of a battery, it is usually done by connecting two batteries in parallel, typically by welding the same pole of two individual batteries together with wires to assemble a battery pack that meets the power requirements of a specific device. This welding provides a stable, low-resistance electrical connection and a robust mechanical structure, ensuring the safety and reliability of the battery pack in high-vibration environments. A transistor welding machine is required in the process of welding two batteries into a battery pack.

[0003] As shown in the reference case "A high melting rate transistor spot welding machine" announcement number "CN217394192U", the material is placed inside the movable welding frame and welded by the welding mechanism. During welding, the protective mechanism is controlled to release the isolation protection of the monitoring probe, so that the monitoring probe can monitor the welding process and transmit the monitoring image to the display. The display can monitor the welding process, thus enabling clear observation of the welding process and avoiding direct observation by human eyes, which can effectively improve the protective performance of welding. The aforementioned application proposed using video monitoring and displays near the welding points to magnify the weld points and assist workers in aligning the battery cells with the upper electrode of the welding machine. However, due to the small size of the battery cells and the upper electrode, even with magnification, alignment difficulties still exist in actual operation, and alignment accuracy is hard to guarantee. This problem is particularly prominent in large-scale welding operations, significantly increasing the operational difficulty and workload for workers. Utility Model Content

[0004] Therefore, it is necessary to provide a transistor welding machine to address the issue of high operational difficulty for workers.

[0005] A transistor welding machine includes: a body and a welding mechanism disposed on the surface of the body, wherein an upper electrode is disposed at the bottom end of the welding mechanism and a lower electrode is disposed below the upper electrode and mounted on a worktable. A limiting mechanism, comprising a position adjustment component and a clamping limiting component mounted on the surface of the lower electrode, wherein a connecting block is provided between the clamping limiting component and the position adjustment component.

[0006] In one embodiment, the position adjustment assembly includes a slide rail disposed on the surface of the lower electrode, an adjustment block is fixedly connected to the side of the slide rail away from the clamping and limiting assembly, and a friction plate is slidably connected inside the adjustment block.

[0007] In one embodiment, the adjusting block is provided with a second threaded rod inside, the top end of the second threaded rod extends through the adjusting block, the bottom end of the second threaded rod is rotatably connected to the friction plate, and the connecting block is slidably connected to the inside of the slide rail.

[0008] In one embodiment, a first threaded rod is provided at one end of the slide rail. One end of the first threaded rod passes through the slide rail, while the other end is rotatably connected to a limit block. The limit block is slidably connected inside the slide rail and cooperates with a connecting block.

[0009] In one embodiment, the clamping and limiting assembly includes a positioning plate fixedly connected to the connecting block, and the positioning plate has multiple sliding grooves inside.

[0010] In one embodiment, the positioning plate is provided with a plurality of clamping blocks on the side away from the connecting block. The clamping blocks are grouped in pairs and the two clamping blocks in each group are arranged opposite each other. The end of the clamping block away from the positioning plate is arranged in an arc shape.

[0011] In one embodiment, the positioning plate has multiple sliders inside its groove, the clamping block is fixedly connected to the multiple sliders, and the clamping block is slidably connected to the positioning plate through the sliders cooperating with the groove.

[0012] In one embodiment, a spring is provided inside the slide, and the spring is disposed between the sliders corresponding to each set of clamping blocks.

[0013] Beneficial effects 1. By setting a clamping mechanism on the surface of the lower electrode, during use, the operator only needs to quickly insert the battery between two sets of clamping blocks to achieve automatic alignment between the battery and the upper electrode. This structure, in conjunction with the sliding of the connecting block within the slide rail, enables rapid positioning of the battery. Compared with the traditional method of alignment relying on image magnification, this design fundamentally avoids the alignment difficulties and instability of accuracy caused by the small size of the battery cell and electrode, significantly reducing the dependence on operator skill when aligning the battery with the upper electrode. In mass welding operations, it can effectively improve alignment consistency, welding efficiency, and yield, while significantly reducing the operator's workload and labor intensity. 2. By combining the position adjustment component with the limiting block inside the slide rail, operators can quickly calibrate and fix the battery according to different battery sizes in advance, thereby significantly improving the equipment's adaptability to different battery specifications and production flexibility. This not only eliminates the frequent and repetitive adjustment and alignment steps in the traditional method, greatly shortening the changeover and debugging time, but also effectively reduces the reliance on operator experience, ensuring positioning accuracy and process consistency in batch welding. At the same time, it reduces downtime caused by size changes, thus optimizing overall production efficiency and equipment versatility. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the body and welding mechanism of this utility model; Figure 3 This is a schematic diagram showing the installation of the limiting mechanism and the lower electrode of this utility model; Figure 4 This is a schematic diagram showing the connection between the position adjustment component and the clamping and limiting component of this utility model; Figure 5 This is a schematic diagram showing the connection between the position adjustment component and the lower electrode of this utility model; Figure 6 This is an exploded view of the clamping and limiting component of this utility model.

[0016] Figure label: 100. Body; 200. Welding mechanism; 300. Upper electrode; 310. Lower electrode; 400. Limiting mechanism; 410. Position adjustment assembly; 411. Slide rail; 4111. First threaded rod; 4112. Limiting block; 412. Adjusting block; 4121. Friction plate; 4122. Second threaded rod; 420. Connecting block; 430. Clamping and limiting assembly; 431. Positioning plate; 432. Slider; 433. Clamping block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figure 1 - Figure 6 This invention describes a transistor welding machine.

[0019] In one embodiment, a transistor welding machine includes: a body 100 and a welding mechanism 200 disposed on the surface of the body 100, wherein an upper electrode 300 is disposed at the bottom end of the welding mechanism 200, and a lower electrode 310 mounted on a worktable is disposed below the upper electrode 300. The limiting mechanism 400 includes a position adjustment component 410 and a clamping limiting component 430 mounted on the surface of the lower electrode 310. A connecting block 420 is provided between the clamping limiting component 430 and the position adjustment component 410.

[0020] The working process of the welding mechanism 200 in this device is as follows; Initially, the cylinder is in the retracted position, and the upper electrode 300 maintains a safe distance from the surface of the battery cell. The transistor spot welder completes its self-test, and the capacitor bank is charged to the set voltage. After the battery is positioned, the operator presses the start button, the solenoid valve is energized, and compressed air enters the rodless chamber of the cylinder, pushing the piston downward. The airflow speed is adjusted by the throttle valve to control the descent acceleration. When approaching the battery cell, the cylinder switches to low-speed mode to ensure that the upper electrode 300 makes light contact with the wire. The limit switch provides feedback, the cylinder stops and maintains pressure. The moment the upper electrode 300 contacts the wire, the control unit sends a discharge command, and the cylinder applies constant pressure to ensure that the wire and the surface of the battery cell are in close contact. The transistor spot welder releases the energy stored in the capacitor, forming a short-duration high-current pulse. A dual-pulse mode is used: the first pulse removes the oxide film, and the second pulse forms the weld nugget. After welding, the cylinder maintains pressure to prevent the weld nugget from cracking during cooling. The welding timer ends, the control unit cuts off the power to the solenoid valve, compressed air enters the rod chamber, the piston moves upward, and the upper electrode 300 returns to the initial position. After confirming that the cylinder is fully retracted, the system enters standby mode, waiting for the next cycle.

[0021] like Figure 3 , Figure 4 and Figure 5 As shown, the position adjustment assembly 410 includes a slide rail 411 disposed on the surface of the lower electrode 310. An adjustment block 412 is fixedly connected to the side of the slide rail 411 away from the clamping and limiting assembly 430. A friction plate 4121 is slidably connected inside the adjustment block 412. A second threaded rod 4122 is disposed inside the adjustment block 412. The top end of the second threaded rod 4122 extends through the adjustment block 412, and the bottom end of the second threaded rod 4122 is rotatably connected to the friction plate 4121. A connecting block 420 is slidably connected to the inside of the slide rail 411. A first threaded rod 4111 is disposed at one end of the slide rail 411. One end of the first threaded rod 4111 extends through the slide rail 411, while the other end is rotatably connected to the limiting block 4112. The limiting block 4112 is slidably connected to the inside of the slide rail 411 and cooperates with the connecting block 420.

[0022] In this embodiment, when aligning the clamping mechanism using the position adjustment component 410, the batteries to be processed are first placed between the clamping blocks 433. Then, the second threaded rod 4122 is rotated, causing the friction plate 4121 to move upward. At this time, the adjustment block 412 can slide on the surface of the lower electrode 310. The operator adjusts the position of the adjustment block 412 back and forth so that the initial position of the first battery cell is directly below the upper electrode 300. Then, the operator rotates the second threaded rod 4122 in the opposite direction... The second threaded rod 4122 drives the friction plate 4121 to move into the lower electrode 310. By increasing the pressure of the friction plate 4121 on the lower electrode 310, the friction between the two is increased, which achieves the effect of positioning the adjusting block 412. Then, the operator slides the positioning plate 431 and slides the second battery directly below the upper electrode 300. The operator then drives the first threaded rod 4111, which drives the limiting block 4112 to move in the slide rail 411 until it abuts against the connecting block 420. At this time, the alignment is completed. It should be noted that this device achieves rapid positioning of the battery by setting a limiting mechanism 400 on the surface of the lower electrode 310. Since the clamping mechanisms are all set on the surface of the lower electrode 310 and do not obstruct the normal contact between the battery and the lower electrode 310, the clamping mechanisms of this device will not affect the normal use of the welding machine.

[0023] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the clamping and limiting assembly 430 includes a positioning plate 431 fixedly connected to the connecting block 420. The positioning plate 431 has multiple sliding grooves inside. Multiple clamping blocks 433 are arranged on the side of the positioning plate 431 away from the connecting block 420. The clamping blocks 433 are grouped in pairs, with the two clamping blocks 433 in each group facing each other. The end of each clamping block 433 away from the positioning plate 431 is arc-shaped. Multiple sliders 432 are arranged inside the sliding grooves of the positioning plate 431. The clamping blocks 433 are fixedly connected to the sliders 432, and the clamping blocks 433 are slidably connected to the positioning plate 431 through the sliders 432 engaging with the sliding grooves. Springs are arranged inside the sliding grooves, and the springs are positioned between the corresponding sliders 432 of each group of clamping blocks 433.

[0024] In this embodiment, each groove is equipped with a positioning rod fixedly connected to the positioning plate 431. The cross-section of the slider 432 is "L" shaped, and the positioning rod passes through the two sliders 432 in each groove. A spring is sleeved on the surface of the positioning rod, and the spring is always in a stretched state. Therefore, when the operator squeezes the battery between each set of clamping blocks 433, the spring will be further stretched, and the tension of the spring will increase, thereby increasing the pressure on the surface of the battery. As a result, after the battery enters the flat surface of the clamping block 433, the tension of the spring will drive the two sliders 432 to clamp and limit the battery.

[0025] Working principle: Before operation, the staff first calibrates the position adjustment component 410 according to different batches of batteries, so that after the battery enters each set of clamping blocks 433, one battery is directly below the upper electrode 300. Then, the positioning plate 431 is slid to one side so that the other battery is also below the upper electrode. After the positioning block is stabilized, the first threaded rod 4111 is rotated to drive the limit block 4112 to move until it abuts against the connecting block 420, thus completing the pre-operation adjustment. Then the staff can start the welding machine to start the operation. The specific working steps are as follows: the worker aligns the two sets of batteries, whose bottom ends are already connected by connecting pieces, with the two sets of clamping blocks 433 respectively, and presses the batteries into the clamping blocks 433. At this time, the surface of the battery will press the two clamping blocks 433 to both sides along the arc edge of the clamping blocks 433. At the same time, the battery moves towards the positioning plate 431 and finally enters the flat surface of the clamping blocks 433. At this time, each set of clamping blocks 433, under the action of springs, presses the corresponding battery in the middle, thereby confining the battery inside each set of clamping blocks 433. At this time, the bottom of the battery is in contact with the lower electrode 310, while the top is directly below the upper electrode 300. Then, the worker attaches the welding point of the wire to the cell at the top of the battery and controls the welding mechanism 200 to weld the wire to the cell. After one battery is welded, the positioning plate 431 is slid directly. The positioning plate 431 slides in the slide rail 411 through the connecting block 420 until it abuts against the limiting block 4112. After the other battery position moves to the position of the previous battery, the above welding operation is repeated to weld the other end of the wire to the cell.

[0026] It should be noted that the body 100, welding mechanism 200, upper electrode 300, lower electrode 310, first threaded rod 4111 and second threaded rod 4122 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the body 100 and welding mechanism 200 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A transistor welding machine, characterized in that, include: The machine body (100) and the welding mechanism (200) disposed on the surface of the machine body (100), wherein the bottom end of the welding mechanism (200) is provided with an upper electrode (300) and the lower electrode (310) mounted on the worktable is disposed below the upper electrode (300). The limiting mechanism (400) includes a position adjustment component (410) mounted on the surface of the lower electrode (310) and a clamping limiting component (430), and a connecting block (420) is provided between the clamping limiting component (430) and the position adjustment component (410).

2. The transistor welding machine according to claim 1, characterized in that, The position adjustment assembly (410) includes a slide rail (411) disposed on the surface of the lower electrode (310). An adjustment block (412) is fixedly connected to the side of the slide rail (411) away from the clamping and limiting assembly (430). A friction plate (4121) is slidably connected inside the adjustment block (412).

3. The transistor welding machine according to claim 2, characterized in that, The adjusting block (412) is provided with a second threaded rod (4122) inside. The top end of the second threaded rod (4122) passes through the adjusting block (412), and the bottom end of the second threaded rod (4122) is rotatably connected to the friction plate (4121). The connecting block (420) is slidably connected to the inside of the slide rail (411).

4. The transistor welding machine according to claim 3, characterized in that, One end of the slide rail (411) is provided with a first threaded rod (4111), one end of the first threaded rod (4111) passes through the slide rail (411) and the other end is rotatably connected to a limit block (4112). The limit block (4112) is slidably connected to the inside of the slide rail (411) and is used in conjunction with the connecting block (420).

5. The transistor welding machine according to claim 1, characterized in that, The clamping and limiting assembly (430) includes a positioning plate (431) fixedly connected to the connecting block (420), and the positioning plate (431) has multiple sliding grooves inside.

6. The transistor welding machine according to claim 5, characterized in that, The positioning plate (431) has a plurality of clamping blocks (433) on the side away from the connecting block (420). The clamping blocks (433) are grouped in pairs and the two clamping blocks (433) in each group are arranged opposite each other. The end of the clamping block (433) away from the positioning plate (431) is arc-shaped.

7. The transistor welding machine according to claim 6, characterized in that, The positioning plate (431) has multiple sliders (432) inside its groove. The clamping block (433) is fixedly connected to the multiple sliders (432). The clamping block (433) is slidably connected to the positioning plate (431) through the sliders (432) cooperating with the groove.

8. The transistor welding machine according to claim 7, characterized in that, The groove is equipped with a spring, which is located between the sliders (432) corresponding to each set of clamping blocks (433).

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