Silver point welding device based on rotary adjustment structure

Abstract

The utility model provides a kind of silver dot welding equipment based on rotation adjusting structure, including welding equipment outer casing, welding protective door and protective door opening and closing mechanism, silver dot welding platform is equipped in shell, it is equipped with welding platform rotating mechanism welding platform on the welding clamping mechanism of configuration, ensure workpiece firm;Side silver dot welding head is provided, realize fine adjustment by welding head fine adjustment mechanism, and by silver dot welding head push welding mechanism complete stable pressure welding.The whole machine adopts pneumatic drive and synchronous belt transmission, compact structure, support air cushion damping, improve running stability.The equipment has the advantages of high welding precision, good safety, strong adaptability, effectively solves the problems of unable to rotate and adjust welding, insufficient protection and poor stability in the prior art, and is suitable for electronic components silver dot welding scene.

Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing and welding technology, and more specifically, to a silver spot welding device based on a rotation adjustment structure. Background Technology

[0002] Silver spot welding is widely used in the manufacturing process of precision components such as electronic components, relays, and switch contacts, and it has high requirements for welding accuracy, stability, and safety.

[0003] Patent application number CN202123406198.8 discloses a high-efficiency circular silver spot welding device, which includes a winding drum, a traction pulley fixed on a bracket, a quantitative feeding component, a sleeve threading component, an electrical connection component, and a limiting component on the welding table. The welding device uses an automatic feeding mechanism in conjunction with the production line to perform precise silver spot welding on the terminal board strip, and feeds the silver alloy electrical contact material quantitatively by means of sleeve threading, and finally performs welding when the welding power supply current is on.

[0004] Existing silver spot welding equipment based on rotary adjustment structures mostly employs manual or semi-automatic operation, which has several shortcomings in practical applications requiring improvement: First, regarding welding head positioning, existing equipment generally relies on operators for manual alignment through visual inspection or simple mechanical scales, lacking a precise fine-tuning mechanism. Second, in terms of workpiece clamping and posture adjustment, most existing welding equipment uses fixed welding tables, which can only handle welding tasks with a single angle or planar layout. Traditional equipment cannot flexibly adjust the welding position, often requiring multiple disassemblies and reassemblies, affecting production efficiency. Regarding workpiece clamping, existing technologies often use spring clamping and manual knobs, which cannot effectively resist workpiece displacement caused by thermal expansion, mechanical vibration, or welding head thrust during welding. Furthermore, there are significant deficiencies in safety protection. Many traditional silver spot welding equipment based on rotary adjustment structures lack automatic safety doors or only use manual sliding door structures, exposing operators to strong arc light, high-temperature metal spatter, and trace amounts of harmful gases during welding, posing significant occupational health and safety risks. Therefore, improvements are made, proposing a silver spot welding equipment based on a rotary adjustment structure. Utility Model Content

[0005] The purpose of this utility model is to address the problems raised in the existing background technology. To achieve the above-mentioned purpose, this utility model provides the following technical solution: a silver spot welding device based on a rotary adjustment structure, including a welding device housing, a welding protective door provided on the front side of the welding device housing, a protective door opening and closing mechanism provided on the welding protective door, a silver spot welding table provided inside the welding device housing, a welding table rotation mechanism provided below the silver spot welding table, a welding clamping mechanism provided on the silver spot welding table, and a silver spot welding head provided on the side of the silver spot welding table. The silver spot welding head is connected to a welding head fine adjustment mechanism and a silver spot welding head pushing welding mechanism.

[0006] As a preferred technical solution of this utility model, the welding table rotation mechanism includes a rotary drive motor, a motor shaft, a drive pulley, a driven pulley, and a synchronous transmission belt. The rotary drive motor is connected to the motor shaft, the motor shaft is connected to the drive pulley, the drive pulley is connected to the driven pulley via the synchronous transmission belt, the outer surface of the drive pulley is provided with anti-slip teeth, and the outer surface of the driven pulley is provided with anti-slip teeth.

[0007] As a preferred technical solution of this utility model, the driven pulley is connected to the silver spot welding station through a rotating connecting shaft.

[0008] As a preferred technical solution of this utility model, the welding clamping mechanism includes a clamping pneumatic cylinder, a clamping telescopic rod, a welding part clamping block, and a part placement platform. The clamping pneumatic cylinder is provided with a clamping telescopic rod, which is connected to the welding part clamping block. The welding part clamping block is located above the part placement platform.

[0009] As a preferred technical solution of this utility model, the silver spot welding head is connected to the welding power source.

[0010] As a preferred technical solution of this utility model, the welding head fine-tuning mechanism includes a welding head fine-tuning slider, a fine-tuning slider slide rod, a welding head fine-tuning screw, and a fine-tuning screw nut. The welding head fine-tuning slider is slidably disposed on the outer surface of the fine-tuning slider slide rod. The welding head fine-tuning screw and the fine-tuning screw nut are threadedly engaged. The fine-tuning screw nut is fixedly connected to the welding head fine-tuning slider.

[0011] As a preferred technical solution of this utility model, the silver spot welding head pushing mechanism includes a welding head pushing cylinder, a welding head pushing rod, a welding head pushing slider, a sliding rail for the pushing slider, and a welding head pushing mechanism support rod; the welding head pushing cylinder is connected to the welding head pushing rod, the welding head pushing rod is connected to the welding head pushing slider, and the welding head pushing slider is slidably disposed on the sliding rail for the pushing slider.

[0012] As a preferred technical solution of this utility model, the fine-tuning slider is installed on the slider mounting seat, the slider mounting seat is fixedly connected to the welding head pusher slider, and a welding head pusher mechanism support rod is provided below the silver spot welding head pusher mechanism and connected to the base of the welding equipment housing.

[0013] As a preferred technical solution of this utility model, the protective door opening and closing mechanism includes a protective door opening and closing drive cylinder, a protective door opening and closing telescopic rod, and a connecting frame. The protective door opening and closing drive cylinder is provided with a protective door opening and closing telescopic rod. The protective door opening and closing telescopic rod is connected to the welding protective door through the connecting frame. The protective door opening and closing drive cylinder is fixed above the outer shell of the welding equipment.

[0014] As a preferred technical solution of this utility model, a housing support rod is provided below the outer shell of the welding equipment, and a support air cushion is provided below the housing support rod.

[0015] Compared with existing technologies, the advantages of this invention are as follows: The welding head fine-tuning mechanism of this invention adopts a screw-nut combination and a slider-rail guide structure, enabling precise adjustment of the silver spot welding head in the horizontal or vertical direction, effectively overcoming the deviation caused by manual alignment in traditional equipment. The welding table rotation mechanism of this invention uses a rotary drive motor to drive the active pulley, which in turn drives the driven pulley via a synchronous transmission belt. The anti-slip teeth of both the active and driven pulleys achieve zero-slip transmission, breaking through the limitations of traditional fixed welding tables. It is suitable for welding tasks with multiple welding points, significantly improving equipment adaptability.

[0016] This utility model's welding clamping mechanism is driven by a clamping pneumatic cylinder. The clamping telescopic rod drives the welding part clamping block to press down, firmly pressing the workpiece onto the part placement table. The protective door opening and closing mechanism of this utility model is driven by a pneumatic cylinder, realizing the automatic closing and opening of the welding protective door, forming a closed working environment, effectively isolating the strong welding light, high temperature splashes and harmful gases, and reducing the safety risks to operators.

[0017] The silver spot welding head pushing mechanism of this utility model is driven by a welding head pushing cylinder, and works in conjunction with the pushing slide rail and the welding head pushing mechanism support rod to keep the silver spot welding head moving in a straight line and with uniform pressure during the pushing process. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 A schematic diagram of the welding power supply structure provided by this utility model; Figure 4A schematic diagram of the welding head fine-tuning mechanism provided by this utility model; Figure 5 A schematic diagram of the structure of the silver spot welding station provided by this utility model; Figure 6 A schematic diagram of the welding clamping mechanism provided by this utility model; Figure 7 A schematic diagram of the welding table rotation mechanism provided by this utility model; Figure 8 This is a partial schematic diagram of the welding head fine-tuning mechanism provided by this utility model.

[0019] Figure 9 A schematic diagram of the silver spot welding head push welding mechanism provided by this utility model.

[0020] Figure 10 A schematic diagram of the protective door opening and closing mechanism provided by this utility model.

[0021] The image shows: 1. Welding equipment housing; 101. Housing support rod; 102. Support air cushion; 2. Welding protective door; 3. Protective door opening and closing mechanism; 301. Protective door opening and closing drive cylinder; 302. Protective door opening and closing telescopic rod; 303. Connecting frame; 4. Silver spot welding table; 5. Welding table rotation mechanism; 501. Rotary drive motor; 502. Motor shaft; 503. Drive pulley; 5031. Drive pulley anti-slip teeth; 504. Driven pulley; 5041. Driven pulley anti-slip teeth; 505. Synchronous transmission belt; 6. Rotary connecting shaft; 7. Welding clamping mechanism; 701. Clamping pneumatic cylinder; 702. Clamping telescopic rod; 703. Welding part clamping block; 704. Part placement platform; 8. Silver spot welding head; 801. Welding power source; 9. Welding head fine-tuning mechanism; 901. Welding head fine-tuning slider; 902. Fine-tuning slider slide rod; 903. Welding head fine-tuning screw; 904. Fine-tuning screw nut; 10. Slider slide rod mounting seat; 11. Silver spot welding head pushing welding mechanism; 1101. Welding head pushing welding cylinder; 1102. Welding head pushing welding rod; 1103. Welding head pushing welding slider; 1104. Push welding slider slide rail; 12. Welding head pushing welding mechanism support rod; 13. Exhaust pipe. Detailed Implementation

[0022] 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.

[0023] Example 1: A silver spot welding device based on a rotary adjustment structure includes a welding device housing 1, a welding protective door 2 is provided on the front side of the welding device housing 1, a protective door opening and closing mechanism 3 is provided on the welding protective door 2, a silver spot welding table 4 is provided inside the welding device housing 1, a welding table rotation mechanism 5 is provided below the silver spot welding table 4, a welding clamping mechanism 7 is provided on the silver spot welding table 4, a silver spot welding head 8 is provided on the side of the silver spot welding table 4, and the silver spot welding head 8 is connected to a welding head fine adjustment mechanism 9 and a silver spot welding head pushing welding mechanism 11.

[0024] The welding table rotation mechanism 5 includes a rotary drive motor 501, a motor shaft 502, a drive pulley 503, a driven pulley 504, and a synchronous transmission belt 505. The rotary drive motor 501 is connected to the motor shaft 502, and the motor shaft 502 is connected to the drive pulley 503. The drive pulley 503 is connected to the driven pulley 504 via the synchronous transmission belt 505. The outer surface of the drive pulley 503 is provided with anti-slip teeth 5031, and the outer surface of the driven pulley 504 is provided with anti-slip teeth 5041. The driven pulley 504 is connected to the silver spot welding table 4 via a rotary connecting shaft 6.

[0025] The welding clamping mechanism 7 includes a clamping pneumatic cylinder 701, a clamping telescopic rod 702, a welding part clamping block 703, and a part placement table 704. The clamping pneumatic cylinder 701 is equipped with a clamping telescopic rod 702, which is connected to the welding part clamping block 703. The welding part clamping block 703 is located above the part placement table 704.

[0026] The silver spot welding head 8 is connected to the welding power supply 801. The welding head fine-tuning mechanism 9 includes a welding head fine-tuning slider 901, a fine-tuning slider rod 902, a welding head fine-tuning screw 903, and a fine-tuning screw nut 904. The welding head fine-tuning slider 901 is slidably disposed on the outer surface of the fine-tuning slider rod 902. The welding head fine-tuning screw 903 and the fine-tuning screw nut 904 are threadedly engaged. The fine-tuning screw nut 904 is fixedly connected to the welding head fine-tuning slider 901.

[0027] The silver spot welding head pushing mechanism 11 includes a welding head pushing cylinder 1101, a welding head pushing rod 1102, a welding head pushing slider 1103, a pushing slider slide rail 1104, and a welding head pushing mechanism support rod 12. The welding head pushing cylinder 1101 is connected to the welding head pushing rod 1102, the welding head pushing rod 1102 is connected to the welding head pushing slider 1103, and the welding head pushing slider 1103 is slidably mounted on the pushing slider slide rail 1104.

[0028] The fine-tuning slider 902 is installed on the slider mounting base 10. The slider mounting base 10 is fixedly connected to the welding head pusher slider 1103. A welding head pusher mechanism support rod 12 is provided below the silver spot welding head pusher mechanism 11. The welding head pusher mechanism support rod 12 is connected to the base of the welding equipment housing 1.

[0029] The protective door opening and closing mechanism 3 includes a protective door opening and closing drive cylinder 301, a protective door opening and closing telescopic rod 302, and a connecting frame 303. The protective door opening and closing drive cylinder 301 houses the protective door opening and closing telescopic rod 302, which is connected to the welding protective door 2 via the connecting frame 303. The protective door opening and closing drive cylinder 301 is fixed above the welding equipment housing 1. A housing support rod 101 is located below the welding equipment housing 1, and a support air cushion 102 is located below the housing support rod 101.

[0030] The working principle of the silver spot welding equipment based on the rotary adjustment structure is as follows: Before starting the equipment, the operator places the silver spot parts to be welded on the part placement platform 704 on the silver spot welding table 4. Subsequently, the protective door opening and closing mechanism 3 is activated: the protective door opening and closing drive cylinder 301 drives the protective door opening and closing telescopic rod 302 to extend or retract, which drives the welding protective door 2 to close through the connecting frame 303, forming a closed working space and ensuring operational safety.

[0031] The clamping pneumatic cylinder 701 drives the clamping telescopic rod 702 to move downward, causing the welding part clamping block 703 to press the workpiece located on the part placement table 704, thereby achieving reliable positioning and fixing of the welding part.

[0032] The welding table rotation mechanism 5 can adjust the welding angle according to process requirements. The rotary drive motor 501 starts, driving the drive pulley 503 to rotate via the motor shaft 502. The anti-slip teeth 5031 on the outer surface of the drive pulley 503 mesh with the synchronous transmission belt 505, transmitting power to the driven pulley 504 via the synchronous transmission belt 505. The anti-slip teeth 5041 on the outer surface of the driven pulley 504 ensure stable transmission and prevent slippage. The driven pulley 504 drives the silver spot welding table 4 to rotate as a whole via the rotary connecting shaft 6, thereby adjusting the welding position of the workpiece relative to the silver spot welding head 8.

[0033] After the welding position is adjusted, the welding head fine-tuning mechanism 9 precisely positions the silver spot welding head 8. By manually or automatically adjusting the welding head fine-tuning screw 903, it engages with the fine-tuning screw nut 904, thereby driving the welding head fine-tuning slider 901, which is fixedly connected to it, to slide along the fine-tuning slider slide rod 902, thus achieving precise displacement adjustment of the silver spot welding head 8 within its range.

[0034] After fine-tuning, the silver spot welding head pushing mechanism 11 performs the welding action: the welding head pushing cylinder 1101 drives the welding head pushing rod 1102 to extend, pushing the welding head pushing slider 1103 to slide linearly along the pushing slider rail 1104; since the fine-tuning slider rod 902 is fixed to the welding head pushing slider 1103 through the slider rod mounting seat 10, the entire welding head fine-tuning mechanism 9 and the silver spot welding head 8 move forward together with the welding head pushing slider 1103, so that the silver spot welding head 8 contacts the workpiece surface. At this time, the welding power source 801 provides welding current to the silver spot welding head 8, and the silver spot welding is completed under the combined action of contact pressure and current heat effect.

[0035] The silver spot welding equipment based on the rotary adjustment structure ensures safety through the protective door opening and closing mechanism 3, the welding clamping mechanism 7 fixes the workpiece, the welding table rotation mechanism 5 adjusts the work position, the welding head fine adjustment mechanism 9 provides precise positioning, and the silver spot welding head pushing mechanism 11 performs the welding action.

[0036] The working process of the silver spot welding equipment based on the rotary adjustment structure is as follows: The operator opens the welding protective door 2 and places the silver spot part to be welded on the part placement platform 704 on the silver spot welding table 4. Then the welding protective door 2 is closed to provide a closed and safe operating environment for subsequent welding operations.

[0037] The protective door opening and closing drive cylinder 301 is activated, pushing the protective door opening and closing telescopic rod 302 to extend, which drives the welding protective door 2 to close completely through the connecting frame 303, ensuring that there is no spatter or strong light leakage during the welding process and protecting the safety of the operators.

[0038] Compressed air is introduced into the clamping pneumatic cylinder 701, which drives the clamping telescopic rod 702 to move downward, causing the welding part clamping block 703 to press the workpiece firmly onto the part placement table 704, preventing displacement during the welding process.

[0039] If the welding process requires multi-angle operation, the welding table rotation mechanism 5 is activated: the rotation drive motor 501 operates, driving the drive pulley 503 to rotate through the motor shaft 502; the drive pulley 503 transmits power to the driven pulley 504 through the synchronous transmission belt 505, and achieves zero-slip transmission by relying on the anti-slip teeth 5031 of the drive pulley and the anti-slip teeth 5041 of the driven pulley; the driven pulley 504 drives the silver spot welding table 4 to rotate to the preset angle through the rotary connecting shaft 6, completing the workpiece orientation adjustment.

[0040] The welding head fine-tuning mechanism 9 calibrates the position of the silver spot welding head 8 by rotating the welding head fine-tuning screw 903, which causes the screw to feed threadedly with the fine-tuning screw nut 904, thereby driving the welding head fine-tuning slider 901 to slide smoothly along the fine-tuning slider slide bar 902, thus adjusting the silver spot welding head 8.

[0041] The welding head push cylinder 1101 actuates, pushing the welding head push rod 1102 to extend, which in turn drives the welding head push slider 1103 to move forward linearly along the push slider slide rail 1104. Since the slider rod mounting seat 10 is fixed on the welding head push slider 1103, the entire welding head fine-tuning mechanism 9, together with the silver spot welding head 8, moves forward synchronously, causing the welding head to contact the workpiece surface. At this time, the welding power supply 801 outputs a set current to the silver spot welding head 8, and under the combined action of contact pressure and Joule heat, the fusion of the silver spot is completed.

[0042] After welding is completed, the welding head push cylinder 1101 retracts, causing the silver spot welding head 8 to return to its initial position; the clamping cylinder 701 releases pressure, the welding part clamping block 703 lifts up, and the workpiece is released; if a rotation operation has been performed, the welding table rotation mechanism 5 can reset the silver spot welding table 4 to its original angle; finally, the protective door opening and closing drive cylinder 301 retracts, and the welding protective door 2 is opened through the connecting frame 303, allowing the operator to remove the welded workpiece.

[0043] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the utility model are covered within the scope of the claims of the present utility model.

Claims

1. A silver spot welding device based on a rotary adjustment structure, comprising a welding device housing (1), characterized in that, A welding protective door (2) is provided on the front side of the outer shell (1) of the welding equipment. A protective door opening and closing mechanism (3) is provided on the welding protective door (2). A silver spot welding table (4) is provided inside the outer shell (1) of the welding equipment. A welding table rotation mechanism (5) is provided below the silver spot welding table (4). A welding clamping mechanism (7) is provided on the silver spot welding table (4). A silver spot welding head (8) is provided on the side of the silver spot welding table (4). The silver spot welding head (8) is connected to the welding head fine adjustment mechanism (9) and the silver spot welding head pushing welding mechanism (11).

2. The silver spot welding equipment based on a rotary adjustment structure according to claim 1, characterized in that, The welding table rotation mechanism (5) includes a rotary drive motor (501), a motor shaft (502), a drive pulley (503), a driven pulley (504), and a synchronous transmission belt (505). The rotary drive motor (501) is connected to the motor shaft (502), the motor shaft (502) is connected to the drive pulley (503), the drive pulley (503) is connected to the driven pulley (504) through the synchronous transmission belt (505), the outer surface of the drive pulley (503) is provided with drive pulley anti-slip teeth (5031), and the outer surface of the driven pulley (504) is provided with driven pulley anti-slip teeth (5041).

3. The silver spot welding equipment based on a rotary adjustment structure according to claim 2, characterized in that, The driven pulley (504) is connected to the silver spot welding station (4) via a rotating connecting shaft (6).

4. The silver spot welding equipment based on a rotary adjustment structure according to claim 3, characterized in that, The welding clamping mechanism (7) includes a clamping pneumatic cylinder (701), a clamping telescopic rod (702), a welding part clamping block (703), and a part placement table (704). The clamping pneumatic cylinder (701) is equipped with a clamping telescopic rod (702), which is connected to the welding part clamping block (703). The welding part clamping block (703) is located above the part placement table (704).

5. The silver spot welding equipment based on a rotary adjustment structure according to claim 4, characterized in that, The silver spot welding head (8) is connected to the welding power source (801).

6. The silver spot welding equipment based on a rotary adjustment structure according to claim 5, characterized in that, The welding head fine-tuning mechanism (9) includes a welding head fine-tuning slider (901), a fine-tuning slider rod (902), a welding head fine-tuning screw (903), and a fine-tuning screw nut (904). The welding head fine-tuning slider (901) is slidably disposed on the outer surface of the fine-tuning slider rod (902). The welding head fine-tuning screw (903) and the fine-tuning screw nut (904) are threadedly engaged. The fine-tuning screw nut (904) is fixedly connected to the welding head fine-tuning slider (901).

7. The silver spot welding equipment based on a rotary adjustment structure according to claim 6, characterized in that, The silver spot welding head pushing mechanism (11) includes a welding head pushing cylinder (1101), a welding head pushing rod (1102), a welding head pushing slider (1103), a pushing slider slide rail (1104), and a welding head pushing mechanism support rod (12). The welding head pushing cylinder (1101) is connected to the welding head pushing rod (1102), the welding head pushing rod (1102) is connected to the welding head pushing slider (1103), and the welding head pushing slider (1103) is slidably mounted on the pushing slider slide rail (1104).

8. The silver spot welding equipment based on a rotary adjustment structure according to claim 7, characterized in that, The fine-tuning slider (902) is installed on the slider mounting base (10), and the slider mounting base (10) is fixedly connected to the welding head push slider (1103). A welding head push mechanism support rod (12) is provided below the silver spot welding head push mechanism (11), and the welding head push mechanism support rod (12) is connected to the base of the welding equipment housing (1).

9. The silver spot welding equipment based on a rotary adjustment structure according to claim 8, characterized in that, The protective door opening and closing mechanism (3) includes a protective door opening and closing drive cylinder (301), a protective door opening and closing telescopic rod (302), and a connecting frame (303). The protective door opening and closing drive cylinder (301) is provided with a protective door opening and closing telescopic rod (302). The protective door opening and closing telescopic rod (302) is connected to the welding protective door (2) through the connecting frame (303). The protective door opening and closing drive cylinder (301) is fixed above the outer shell (1) of the welding equipment.

10. A silver spot welding device based on a rotary adjustment structure according to claim 9, characterized in that, A housing support rod (101) is provided below the outer shell (1) of the welding equipment, and a support air cushion (102) is provided below the housing support rod (101).

Images