Automatic welding tin wire feeding device for intelligent manufacturing

Abstract

The invention belongs to the technical field of welding production, and discloses an automatic welding tin wire feeding device for intelligent manufacturing, which comprises a base, a box body is fixedly arranged on the upper wall of the base, a pneumatic wire feeding assembly and a cleaning assembly are arranged on the upper wall of the base, and the pneumatic wire feeding assembly is connected with the cleaning assembly through a pipeline; the pneumatic wire feeding assembly comprises a wire feeding air cylinder fixedly arranged on the upper wall of the base, a piston rod movably and tightly attached to the interior of the wire feeding air cylinder, a wire feeding arm hinged to the upper end of the piston rod and a driving wheel fixedly arranged at the free end of the wire feeding arm. On one hand, the pneumatic wire feeding assembly is driven to achieve clamping and pushing of the tin wire, on the other hand, negative pressure is formed to attract the cleaning assembly to conduct online dust removal on the surface of the tin wire, function integration and power cooperation of wire feeding and cleaning are achieved, the structure is simplified, and the response speed and the cleaning effect are improved.

Description

Technical Field

[0001] This invention belongs to the field of welding production technology, and in particular relates to an automatic wire feeding device for welding solder wire in intelligent manufacturing. Background Technology

[0002] In intelligent manufacturing, automatic wire feeding devices for soldering have become key equipment in electronic assembly production lines. Their importance lies in ensuring the continuity, stability, and efficiency of the soldering process, thereby improving product quality and production efficiency. However, existing automatic wire feeding devices still have some shortcomings in design and function, which urgently need to be improved.

[0003] In existing technologies, wire feeding devices typically use a motor-driven wire feeding wheel to transport solder wire. While this method can meet the wire feeding requirements to some extent, it still has the following two main problems: (1) Traditional wire feeding devices require additional motors, reducers and transmission mechanisms, resulting in a complex overall structure and large size. This not only increases the manufacturing cost of the equipment, but also occupies valuable production line space and reduces the flexibility of the production line. (2) During the storage and transportation of solder wire, its surface is prone to adsorbing dust and oxides, which affects the welding quality. Existing cleaning methods mostly use manual or independent cleaning equipment, which not only has low cleaning efficiency, but also easily damages the surface of the solder wire, further affecting the welding effect. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an automatic solder wire feeding device for intelligent manufacturing. The device uses airflow generated by a single air pump to drive the pneumatic wire feeding component to clamp and push the solder wire, and to form a negative pressure to attract the cleaning component to remove dust from the surface of the solder wire online. This realizes the integration and power coordination of wire feeding and cleaning functions, simplifies the structure, and improves the response speed and cleaning effect.

[0005] The technical solution adopted in this invention is as follows: an automatic wire feeding device for welding solder wire in intelligent manufacturing, including a base, a box fixedly provided on the upper wall of the base, a pneumatic wire feeding assembly and a cleaning assembly provided on the upper wall of the base, and the pneumatic wire feeding assembly and the cleaning assembly being connected by pipes; The pneumatic wire feeding assembly includes a wire feeding cylinder fixedly mounted on the upper wall of the base, a piston rod movably and closely fitted inside the wire feeding cylinder, a wire feeding arm hinged to the upper end of the piston rod, and a drive wheel fixedly mounted on the free end of the wire feeding arm. A placement seat is horizontally fixedly mounted on the inner wall of the housing, and the drive wheel corresponds to the placement seat. The cleaning assembly includes a cleaning chamber fixedly mounted on a base and a brush fixedly mounted on the inner wall of the cleaning chamber. A dust collection tank is fixedly connected to the upper wall of the base and is connected in communication with the cleaning chamber. An air pump is fixedly mounted on the upper wall of the base. The dust collection tank is connected to the air pump's suction end pipe, and the air pump's outlet end is connected to the base end pipe of the wire feeding cylinder.

[0006] As a preferred technical solution of this invention, a second airflow pipe is connected and fixedly connected between the dust collection tank and the air intake end of the air pump, and a first airflow pipe is connected and fixedly connected between the air outlet end of the air pump and the base end of the wire feeding cylinder.

[0007] As a preferred technical solution of this invention, the inner wall of the box is symmetrically and vertically slidably provided with sliding blocks, the sliding blocks are rotatably provided with rotating shafts, the wire feeding arm is fixedly provided on the rotating shafts, the end of the wire feeding arm away from the drive wheel is fixedly provided with a connecting frame, the upper end of the piston rod corresponds to the bottom wall of the connecting frame, and a pressure cylinder is fixedly provided on the upper wall of one side of the sliding block, the base end of the pressure cylinder is fixedly provided on the upper wall of the box.

[0008] As a preferred technical solution of this invention, V-shaped grooves are provided at the rim of the drive wheel and on the upper wall of the mounting base.

[0009] As a preferred technical solution of this invention, the side walls on both sides of the cleaning chamber are coaxially provided with wire feeding through holes, which correspond to the placement seat.

[0010] As a preferred technical solution of this invention, the dust collection tank is equipped with a filter screen.

[0011] As a preferred technical solution of this invention, a proportional valve is fixedly provided on the lower wall of the base, and the first airflow pipe is connected to the outlet of the air pump through the proportional valve.

[0012] The beneficial effects of the present invention after adopting the above structure are as follows: (1) By using a single air pump as a power source, the pneumatic wire feeding assembly and the cleaning assembly work together to achieve the integration of wire feeding and cleaning functions, simplifying the device structure, reducing the number of parts, and saving the installation space of the equipment. Compared with the traditional motor-driven wire feeding device, this device significantly reduces the size of the equipment and improves the space utilization rate of the production line while ensuring the function.

[0013] (2) By setting a brush in the cleaning chamber and combining it with the negative pressure generated by the air pump, online and dynamic cleaning of the solder wire surface is achieved. This cleaning method can not only effectively remove dust and oxides from the solder wire surface, but also avoid damage to the solder wire surface. The cleaned solder wire surface is clean and tidy, ensuring the stability of the welding process and the high consistency of welding quality. Compared with traditional manual or independent cleaning equipment, this device has significantly improved in terms of cleaning effect and efficiency.

[0014] (3) A lever-type clamping structure driven by a cylinder is adopted, and the pushing speed and stroke of the wire feeding cylinder are precisely controlled by a proportional valve, which realizes the adjustable wire feeding force and precise control of the wire feeding length. The V-groove design of the drive wheel and the placement seat ensures that the wire feeding process does not slip or damage the solder wire, effectively solving the technical problems of unstable wire feeding and poor precision. Precise wire feeding control not only improves the reliability and consistency of welding, but also reduces the scrap rate caused by wire feeding problems, and improves production efficiency and product quality. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic solder wire feeding device for intelligent manufacturing proposed in this invention. Figure 2 This is a cross-sectional view of the internal structure of the box proposed in this invention; Figure 3 for Figure 2 Enlarged view of a portion of the structure in section A; Figure 4 This is a schematic diagram showing the connection relationship between the sliding block and the rotating shaft proposed in this invention.

[0017] In the attached diagram: 1. Base; 2. Air pump; 3. Wire feeding cylinder; 4. Wire feeding arm; 5. Rotary shaft; 6. Drive wheel; 7. Placement seat; 8. Piston rod; 9. Cleaning chamber; 10. Brush; 11. Connecting frame; 12. Dust collection tank; 13. Filter screen; 14. Sliding block; 15. Box body; 16. Second airflow duct; 17. First airflow duct; 18. Proportional valve. Detailed Implementation

[0018] like Figures 1-4 As shown, an automatic wire feeding device for welding solder wire in intelligent manufacturing includes a base 1, a box 15 fixedly provided on the upper wall of the base 1, a pneumatic wire feeding assembly and a cleaning assembly provided on the upper wall of the base 1, and the pneumatic wire feeding assembly and the cleaning assembly are connected by pipes. The pneumatic wire feeding assembly includes a wire feeding cylinder 3 fixedly mounted on the upper wall of the base 1, a piston rod 8 movably and closely mounted inside the wire feeding cylinder 3, a wire feeding arm 4 hinged to the upper end of the piston rod 8, and a drive wheel 6 fixedly mounted on the free end of the wire feeding arm 4. The side wall of the wire feeding cylinder 3 is provided with an air outlet. The inner wall of the housing 15 is horizontally fixed with a placement seat 7. The drive wheel 6 corresponds to the placement seat 7. V-grooves are provided at the rim of the drive wheel 6 and on the upper wall of the placement seat 7. The cleaning assembly includes a cleaning chamber 9 fixedly mounted on a base 1. The side walls of the cleaning chamber 9 are coaxially aligned with corresponding wire feeding holes, which correspond to the placement seat 7. A brush 10 is fixedly mounted inside the cleaning chamber 9. A dust collection tank 12 is fixedly connected to the upper wall of the base 1. One side wall of the dust collection tank 12 is connected to the cleaning chamber 9. An air pump 2 is fixedly mounted on the upper wall of the base 1. A second airflow pipe 16 is fixedly connected to the other side wall of the dust collection tank 12 and the suction end of the air pump 2. A filter screen 13 is provided inside the dust collection tank 12. A first airflow pipe 17 is fixedly connected to the outlet end of the air pump 2 and the base end of the wire feeding cylinder 3. A proportional valve 18 is fixedly mounted on the lower wall of the base 1. The first airflow pipe 17 is connected to the outlet end of the air pump 2 via the proportional valve 18 to adjust the airflow pressure and flow rate entering the wire feeding cylinder 3, thereby controlling the wire feeding speed.

[0019] The inner wall of the housing 15 is symmetrically and horizontally equipped with sliding blocks 14. A rotating shaft 5 is rotatably mounted on the sliding blocks 14. The wire feeding arm 4 is fixedly mounted on the rotating shaft 5, thus forming a lever structure. A pressure cylinder is fixedly mounted on the upper wall of one side of the sliding blocks 14. The base end of the pressure cylinder is fixedly mounted on the upper wall of the housing 15. A connecting frame 11 is fixedly mounted on the end of the wire feeding arm 4 away from the drive wheel 6. The upper end of the piston rod 8 corresponds to the bottom wall of the connecting frame 11. The piston rod 8 can move up and down to drive the wire feeding arm 4 to swing around the rotating shaft 5, thereby causing the drive wheel 6 to press against or leave the placement seat 7.

[0020] In practical use, the solder wire is first fed through the wire feeding through hole, thus passing through the cleaning chamber 9. Then, the solder wire is placed in the V-groove of the placement seat 7. The air pump 2 is started. The compressed air generated by the air pump 2 enters the wire feeding cylinder 3 through the first airflow pipe 17 (the flow rate can be adjusted by the proportional valve 18). This pushes the piston rod 8 to extend. The piston rod 8 drives the wire feeding arm 4 to rotate around the rotating shaft 5 through the lever principle. At this time, the rotating shaft 5 will push the output end of the pressure cylinder to move upward under the guidance of the sliding block 14, thereby compressing the gas inside the pressure cylinder and causing the drive wheel 6 to press the solder wire onto the placement seat 7. The continuous airflow pressure pushes the piston rod 8 to continue moving upward, and the rotating shaft 5 and sliding block 14 continue to move upward. The swing of the wire feeding arm 4 drives the drive wheel 6 to move to one side. The friction between the drive wheel 6 and the solder wire pushes the solder wire forward. The suction end of the air pump 2 generates airflow in the cleaning chamber 9 through the second airflow pipe 16 and the dust collection tank 12, which sucks the dust on the surface of the solder wire removed by the brush 10 into the dust collection tank 12. The dust is blocked by the filter screen 13 and left in the lower part of the dust collection tank 12. The cleaned air is then sucked in and discharged by the air pump 2. When it is necessary to stop wire feeding, the air pressure is reduced by adjusting the proportional valve 18 through the control system. The pressure in the rodless chamber of the wire feeding cylinder 3 decreases. Under the action of the gravity of the drive wheel 6, the wire feeding arm 4 swings back, and the pressure between the drive wheel 6 and the solder wire gradually decreases, and the wire feeding stops. Throughout the process, the wire feeding and cleaning actions are driven by the same air pump 2 and are carried out in a coordinated manner.

Claims

1. A welding tin wire automatic wire feeding device for intelligent manufacturing, comprising a base (1), a box (15) is fixedly arranged on the upper wall of the base (1), characterized in that The upper wall of the base (1) is provided with a pneumatic wire feeding assembly and a cleaning assembly, and the pneumatic wire feeding assembly is connected with the cleaning assembly through pipelines; The pneumatic wire feeding assembly comprises a wire feeding cylinder (3) fixedly arranged on the upper wall of the base (1), a piston rod (8) movably and closely arranged in the wire feeding cylinder (3), a wire feeding arm (4) hingedly arranged on the upper end of the piston rod (8), and a driving wheel (6) fixedly arranged on the free end of the wire feeding arm (4), a placing seat (7) is horizontally fixedly arranged on the inner wall of the box (15), and the driving wheel (6) corresponds to the placing seat (7); The cleaning assembly comprises a cleaning cavity (9) fixedly arranged on the base (1), and a brush (10) fixedly arranged on the inner wall of the cleaning cavity (9), a dust collecting tank (12) is fixedly connected to the upper wall of the base (1), the dust collecting tank (12) is connected with the cleaning cavity (9) through pipelines, a gas pump (2) is fixedly arranged on the upper wall of the base (1), the dust collecting tank (12) is connected with the air suction end of the gas pump (2) through pipelines, and the air outlet end of the gas pump (2) is connected with the base end of the wire feeding cylinder (3) through pipelines.

2. The automatic solder wire feeding device for intelligent manufacturing according to claim 1, characterized in that: A second airflow pipeline (16) is fixedly and throughly connected between the dust collecting tank (12) and the air suction end of the gas pump (2), and a first airflow pipeline (17) is fixedly and throughly connected between the air outlet end of the gas pump (2) and the base end of the wire feeding cylinder (3).

3. The automatic solder wire feeding device for intelligent manufacturing according to claim 2, characterized in that: A sliding block (14) is symmetrically and horizontally slidably arranged on the inner wall of the box (15), a rotating shaft (5) is rotatably arranged on the sliding block (14), the wire feeding arm (4) is fixedly arranged on the rotating shaft (5), a connecting frame (11) is hingedly arranged on the end of the wire feeding arm (4) away from the driving wheel (6), the upper end of the piston rod (8) corresponds to the bottom wall of the connecting frame (11), a pressure cylinder is fixedly arranged on the upper wall of the sliding block (14), and the base end of the pressure cylinder is fixedly arranged on the upper wall of the box (15).

4. The automatic solder wire feeding device for intelligent manufacturing according to claim 1, characterized in that: V-shaped grooves are formed in the rim of the driving wheel (6) and the upper wall of the placing seat (7).

5. The automatic solder wire feeder for intelligent manufacturing of claim 1, wherein: A wire feeding through hole is coaxially and correspondingly formed in the side wall on the both sides of the cleaning cavity (9), and the wire feeding through hole corresponds to the placing seat (7).

6. The automatic solder wire feeding device for intelligent manufacturing of claim 1, wherein: A filter screen (13) is arranged in the dust collecting tank (12).

7. The automatic solder wire feeder for intelligent manufacturing of claim 2, wherein: A proportional valve (18) is fixedly arranged on the lower wall of the base (1), and the first airflow pipeline (17) is connected with the air outlet end of the gas pump (2) through the proportional valve (18).

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