Spot welding device for jewelry processing

Abstract

The utility model discloses a jewelry processing technical field's spot welding device of jewelry processing, including the frame of spot welding device, the one side of frame and is close to top welding and has supported frame, the one side of frame and is close to bottom welding and has fixed frame, the inboard of fixed frame is installed with the guide seat through bolt, the inboard installation of guide seat has the support spare for supporting jewelry, the front end of supported frame is installed with the welding spare for to jewelry spot welding, and the welding voltage regulation is realized through transformer to electric welding machine, and respectively located the upper and lower both ends of frame, and the guide seat in fixed frame can support and cooperate welding to jewelry, and the support spare can change height and transverse position's change to work piece, and the welding spare can change height and longitudinal position's change.

Description

Technical Field

[0001] This utility model relates to the field of jewelry processing, specifically a spot welding device for jewelry processing. Background Technology

[0002] In the field of jewelry processing, spot welding equipment is the core equipment for connecting small metal parts (such as pendant clasps, earring pins, and chain connectors). It is widely used in the fine welding operations of jewelry such as gold, silver, and platinum. Its core function is to instantly fuse the parts of the jewelry to be welded through local high-temperature electric arc or laser, ensuring a firm connection without damaging the surrounding metal surface. Currently, the most common method is manual hand-held spot welding. This requires the operator to hold the welding gun or the jewelry blank and align it with the part to be welded. The operator relies entirely on the stability of their hand to control the welding point. However, jewelry parts are extremely small, and even a slight tremor of the hand can cause the welding point to shift, resulting in welding misalignment or missed welding. This not only affects the strength of the connection but also leaves extra welding marks on the surface of the jewelry, requiring additional manpower for polishing and repair, which increases processing costs. At the same time, manual hand-held welding cannot accurately control the welding force and time, which can easily lead to over-fusion and deformation of the part to be welded or insufficient welding resulting in a cold weld. Furthermore, while existing laser spot welding devices have solved the stability problem of manual handheld operation, their adjustment structure design is rigid. Adjustments in multiple directions, such as height, left / right, and forward / backward, are cumbersome. Height adjustment requires turning multiple fixing bolts to change the height of the laser head support, while left / right and forward / backward adjustments require moving the entire mobile base. This process is not only time-consuming but also prevents fine-tuning. Jewelry welding demands extremely high precision; if the area to be welded cannot be accurately aligned with the laser point due to inconvenient adjustment, it can easily lead to welding position deviations and damage to the original shape of the jewelry. As consumers demand more refined and personalized jewelry, jewelry components are becoming increasingly complex, with welding points being more concealed and smaller in size. This creates an increasingly urgent need for high-precision and easily adjustable spot welding devices. Currently available spot welding devices either rely on manual hand-held operation or have insufficient adjustment capabilities for laser-based spot welding, failing to meet the multi-directional precision adjustment requirements for fine jewelry welding. This results in unstable welding quality and poor aesthetics in finished products. Therefore, it is necessary to design a spot welding device for jewelry processing to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a spot welding device for jewelry processing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spot welding device for jewelry processing, comprising a frame for the spot welding device, an electric welding machine fixedly mounted on one side of the frame by bolts, a transformer mounted on the inner side of the frame near the top, a support frame welded on one side of the frame near the top, a fixing frame welded on one side of the frame near the bottom, a guide seat mounted on the inner side of the fixing frame by bolts, a support member for supporting jewelry mounted on the inner side of the guide seat, and a welding member for spot welding jewelry mounted on the front end of the support frame.

[0005] Preferably, the welded component includes an electric telescopic rod installed on the top inner side of the support frame. The electric telescopic rod is bolted to a mounting block. A first cylinder is mounted on the top of the mounting block. An electrode seat is mounted on the first cylinder via a first push rod. A copper strip is bolted between the electrode seat and the transformer. A spot welding head is bolted to the bottom of the electrode seat.

[0006] Preferably, the support includes a second cylinder fixedly installed at the bottom of the fixed frame, the second cylinder having a push block fixedly installed on it via a second push rod, a connecting rod slidably connected to the inner side of the guide seat, a roller rotatably installed at the bottom of the connecting rod, and a brass pad installed at the top of the connecting rod.

[0007] Preferably, the support further includes a groove formed at the top of the connecting rod, a screw rod passing through the inner side of the groove, and a slider screwed onto the outer side of the screw rod, the slider being fixedly connected to the brass pad by bolts.

[0008] Preferably, a fixing plate is welded to the inner side of the guide seat near the top, and a fixing ring is welded to the outer side of the connecting rod near the lower middle part. A spring is fixedly connected between the fixing plate and the fixing ring.

[0009] Preferably, a guide plate is fixedly installed on one side of the support frame by bolts, and the guide plate passes through the slider and is slidably connected to it.

[0010] Preferably, a positioning block is fixedly installed on the top of the guide seat, and the positioning block is embedded in one side of the connecting rod and slidably connected thereto.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The welding machine uses a transformer to regulate the welding voltage. Both the support frame and the fixed frame are triangular, located at the upper and lower ends of the machine frame, respectively. The guide seat inside the fixed frame can support and cooperate with the welding of jewelry. The support can change the height and lateral position of the workpiece, and the welded part can change the height and longitudinal position, thereby improving the accuracy and practicality of the equipment for spot welding jewelry.

[0012] 2. The copper bar is responsible for efficiently transmitting the current from the power supply to the welding point and quickly dissipating the heat generated during the welding process through its good thermal conductivity, preventing local overheating that could damage the equipment. The electric telescopic rod can drive the mounting block to change its longitudinal position back and forth. Similarly, the mounting block drives the first cylinder to move. The first cylinder drives the electrode seat to change its position up and down and back and forth through the first push rod, so that the spot welding head at the bottom of the electrode seat can perform spot welding operations on the jewelry at different positions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front sectional perspective view of the overall structure of this utility model; Figure 3 This is a left-side sectional perspective view of the overall structure of this utility model; Figure 4 The overall structure of this utility model Figure 2 Enlarged view of point A in the middle; Figure 5 The overall structure of this utility model Figure 2 Enlarged view at point B in the middle; Figure 6 The overall structure of this utility model Figure 3 Enlarged view of point C.

[0014] In the diagram: 1. Frame; 2. Welding machine; 3. Transformer; 4. Support frame; 5. Fixing frame; 6. Guide seat; 7. Electric telescopic rod; 8. Mounting block; 9. First cylinder; 10. First push rod; 11. Electrode seat; 12. Copper strip; 13. Spot welding head; 14. Second cylinder; 15. Second push rod; 16. Push block; 17. Connecting rod; 18. Roller; 19. Brass pad; 20. Slide groove; 21. Screw; 22. Slider; 23. Fixing plate; 24. Fixing ring; 25. Spring; 26. Guide plate; 27. Positioning block. Detailed Implementation

[0015] 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.

[0016] Example 1 Please refer to Figures 1-6As shown, this utility model provides a spot welding device for jewelry processing, including a frame 1 of the spot welding device. A welding machine 2 is fixedly installed on one side of the frame 1 by bolts. A transformer 3 is installed on the inner side of the frame 1 near the top. A support frame 4 is welded on one side of the frame 1 near the top. A fixing frame 5 is welded on one side of the frame 1 near the bottom. A guide seat 6 is installed on the inner side of the fixing frame 5 by bolts. A support component for supporting jewelry is installed on the inner side of the guide seat 6. A welding component for spot welding jewelry is installed at the front end of the support frame 4.

[0017] In addition, the welding machine 2 uses the transformer 3 to adjust the welding voltage. The support frame 4 and the fixed frame 5 are both triangular and located at the upper and lower ends of the frame 1, respectively. The guide seat 6 inside the fixed frame 5 can support and cooperate with the welding of the jewelry. The support can change the height and lateral position of the workpiece, and the welded part can change the height and longitudinal position, thereby improving the accuracy and practicality of the equipment for spot welding jewelry.

[0018] Specifically, the welded components include an electric telescopic rod 7 installed on the top inner side of the support frame 4, an installation block 8 installed on the electric telescopic rod 7 by bolts, a first cylinder 9 installed on the top of the installation block 8, an electrode seat 11 installed on the first cylinder 9 by a first push rod 10, a copper strip 12 installed between the electrode seat 11 and the transformer 3 by bolts, a spot welding head 13 installed on the bottom of the electrode seat 11 by bolts, and a guide plate 26 fixedly installed on one side of the support frame 4 by bolts, the guide plate 26 passing through the slider 22 and slidably connected to it.

[0019] The guide plate 26 passes through the mounting block 8 to guide and support the mounting block 8, preventing it from shifting or shaking. The copper strip 12 is responsible for efficiently transmitting the current from the power supply to the welding point and quickly dissipating the heat generated during the welding process through its good thermal conductivity, preventing local overheating from damaging the equipment. The electric telescopic rod 7 can drive the mounting block 8 to change its longitudinal position. Similarly, the mounting block 8 drives the first cylinder 9 to move. The first cylinder 9 drives the electrode seat 11 to change its position up and down and forward and backward through the first push rod 10, so that the spot welding head 13 at the bottom of the electrode seat 11 can perform spot welding operations on the jewelry at different positions.

[0020] More specifically, the support includes a second cylinder 14 fixedly installed at the bottom of the fixed frame 5. The second cylinder 14 is fixedly installed with a push block 16 via a second push rod 15. A connecting rod 17 is slidably connected to the inside of the guide seat 6. A roller 18 is rotatably installed at the bottom of the connecting rod 17. A brass pad 19 is installed at the top of the connecting rod 17. The support also includes a groove 20 opened at the top of the connecting rod 17. A screw 21 passes through the inside of the groove 20. A slider 22 is screwed to the outside of the screw 21. The slider 22 is fixedly connected to the brass pad 19 by bolts. A fixing plate 23 is welded to the inside of the guide seat 6 near the top. A fixing ring 24 is welded to the outside of the connecting rod 17 near the middle and lower part. A spring 25 is fixedly connected between the fixing plate 23 and the fixing ring 24. A positioning block 27 is fixedly installed at the top of the guide seat 6. The positioning block 27 is embedded in one side of the connecting rod 17 and slidably connected to it.

[0021] Furthermore, the push block 16 has a right-angled trapezoidal cross section. The second cylinder 14 drives the push block 16 to move through the second push rod 15. When the push block 16 moves, the roller 18 rolls on the surface of the push block 16. The roller 18 drives the connecting rod 17 to move upward, so that the connecting rod 17 drives the brass pad 19 to support the workpiece to move closer to or away from the spot welding head 13. The positioning block 27 can guide the connecting rod 17 to prevent it from deviating.

[0022] Furthermore, by using the screw 21 to drive the slider 22 to slide laterally left and right within the groove 20, the slider 22 can cause the workpiece on the top of the brass pad 19 to change position, thereby improving the accuracy and convenience of adjusting the position of the jewelry.

[0023] The spring 25 at the bottom of the fixed plate 23 can press and push the fixed ring 24 downward, causing the fixed ring 24 to drive the connecting rod 17 to move downward.

[0024] Working principle: First, the workpiece is placed on the brass pad 19 at the top of the connecting rod 17. Then, the second cylinder 14 is activated, which drives the push block 16 to move through the second push rod 15. When the push block 16 moves, the roller 18 rolls on the surface of the push block 16. The roller 18 drives the connecting rod 17 to move upward, so that the connecting rod 17 drives the brass pad 19 to support the workpiece close to the spot welding head 13. At the same time, the fixing ring 24 compresses the spring 25. Then, as needed, the electric telescopic rod 7 and the first cylinder 9 are activated. The electric telescopic rod 7 drives the mounting block 8 to change its longitudinal position. At the same time, the mounting block 8 slides on the outside of the guide plate 26. At the same time, the mounting block 8 drives the first cylinder 9 to move. Then, the first cylinder 9 drives the electrode seat 11 to change its height through the first push rod 10, so that the spot welding head 13 at the bottom of the electrode seat 11 is close to the jewelry. Then, as needed, the transformer 3 and the welding machine 2 are activated to perform spot welding. When it is necessary to adjust the position of the workpiece, rotate the screw 21 to make it drive the slider 22 to slide laterally left and right in the slide groove 20. At the same time, the slider 22 drives the workpiece on the top of the brass pad 19 to change position.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A jewelry processing spot welding device comprising a frame (1) of the spot welding device, characterized in that: A welding machine (2) is fixedly installed on one side of the frame (1) by bolts. A transformer (3) is installed on the inside of the frame (1) and near the top. A support frame (4) is welded on one side of the frame (1) and near the top. A fixing frame (5) is welded on one side of the frame (1) and near the bottom. A guide seat (6) is installed on the inside of the fixing frame (5) by bolts. A support for supporting jewelry is installed on the inside of the guide seat (6). A welding component for spot welding jewelry is installed at the front end of the support frame (4).

2. The spot welding device for jewelry processing according to claim 1, characterized in that: The welded component includes an electric telescopic rod (7) installed on the top inner side of the support frame (4). The electric telescopic rod (7) is bolted to a mounting block (8). A first cylinder (9) is mounted on the top of the mounting block (8). An electrode seat (11) is mounted on the first cylinder (9) via a first push rod (10). A copper strip (12) is bolted between the electrode seat (11) and the transformer (3). A spot welding head (13) is bolted to the bottom of the electrode seat (11).

3. The spot welding device for jewelry processing according to claim 2, characterized in that: The support includes a second cylinder (14) fixedly installed at the bottom of the fixed frame (5). The second cylinder (14) is fixedly installed with a push block (16) via a second push rod (15). A connecting rod (17) is slidably connected to the inside of the guide seat (6). A roller (18) is rotatably installed at the bottom of the connecting rod (17). A brass pad (19) is installed at the top of the connecting rod (17).

4. The spot welding device for jewelry processing according to claim 3, characterized in that: The support also includes a groove (20) opened at the top of the connecting rod (17), a screw (21) passing through the inner side of the groove (20), and a slider (22) screwed on the outer side of the screw (21). The slider (22) is fixedly connected to the brass pad (19) by bolts.

5. The spot welding device for jewelry processing according to claim 4, characterized in that: A fixing plate (23) is welded to the inner side and near the top of the guide seat (6), and a fixing ring (24) is welded to the outer side and near the middle and lower part of the connecting rod (17). A spring (25) is fixedly connected between the fixing plate (23) and the fixing ring (24).

6. The spot welding device for jewelry processing according to claim 3, characterized in that: A guide plate (26) is fixedly installed on one side of the support frame (4) by bolts. The guide plate (26) passes through the slider (22) and is slidably connected to it.

7. The spot welding device for jewelry processing according to claim 5, characterized in that: A positioning block (27) is fixedly installed on the top of the guide seat (6). The positioning block (27) is embedded in one side of the connecting rod (17) and slidably connected to it.

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