Electric welding machine for PCB production

Abstract

The utility model relates to electric welding machine technical field, concretely is a kind of electric welding machine for PCB production, including electric welding machine main body and heat dissipation component, electric welding machine main body includes body and workbench, workbench is slidably connected on body, workbench is composed of base and cover plate, base is close to the side of cover plate and is equipped with accommodating cavity, cover plate is bolted to base, multiple positioning screw holes are formed in cover plate, multiple locking pieces are detachably connected to cover plate, heat dissipation component is connected on base.In the utility model, the heat-distributing plate in heat-dissipating piece and heat-dissipating fin cooperate base and limit seat to form multiple rectangular closed air flow channels, cold air inhaled by air inlet fan must pass through the air flow channel to reduce the temperature in workbench when moving, avoid air flow from other position to leak and reduce the contact with heat-dissipating fin, at the same time, the bottom of heat-dissipating fin is limited by limiting piece, and the vibration of heat-dissipating fin when high-speed airflow passes through can also prevent noise.

Description

Technical Field

[0001] This utility model relates to the field of electric welding machine technology, specifically to an electric welding machine for PCB board production. Background Technology

[0002] A soldering machine is a mechanical device used for welding operations, typically to join solder material to workpieces. Welding is a common manufacturing and processing method used to join two or more materials together by melting solder material and then cooling it to form a strong bond.

[0003] Chinese Patent No. CN218080855U discloses a PCB soldering machine for facilitating uniform heat dissipation. The machine includes: a housing with a mounting base on its lower outer side; a hinged sealing door at the front of the housing with an observation window embedded in the center of the door; a first electric slide rail mounted on the upper interior of the housing, with a soldering assembly connected to its outer side; a first cooling fan mounted on the upper interior wall of the housing; a heat dissipation hole penetrating the left end of the housing; dust filters mounted on the outer sides of both the first cooling fan and the heat dissipation hole; and a second electric slide rail mounted on the lower interior of the housing; and a slider mounted on the outer side of the second electric slide rail. This PCB soldering machine for facilitating uniform heat dissipation has a good uniform heat dissipation structure and allows for a tight connection between the placement plate and the heat dissipation fins, thus facilitating better heat dissipation for the PCB placed on the upper part of the placement plate.

[0004] However, in the above technical solution, only two cooling fans are set to accelerate the airflow between the heat dissipation fins. However, the heat dissipation fins and the slider do not make direct contact, which causes leakage when the airflow passes through the air duct formed by the heat dissipation fins, resulting in a decrease in its heat dissipation capacity. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing an electric welding machine for PCB board production.

[0006] The technical solution of this utility model is as follows: A welding machine for PCB board production includes a welding machine body, which includes a machine body and a worktable. The worktable is slidably connected to the machine body and consists of a base and a cover plate. The base has a cavity near the cover plate. The cover plate is bolted to the base and has multiple positioning threaded holes. Multiple locking parts are detachably connected to the cover plate. A heat dissipation assembly is connected to the base and includes an intake fan, an exhaust fan, a heat sink, and a limiting part. The intake fan and exhaust fan are respectively installed on both sides of the base, and the heat sink is disposed between the intake fan and the exhaust fan. The heat sink is uniformly distributed... The heat dissipation assembly consists of a heat plate, heat dissipation fins, air guides, and a honeycomb plate. Multiple parallel heat dissipation fins are connected to one side of the heat dissipation plate, and symmetrical protrusions are provided on the side of the heat dissipation fins away from the heat dissipation plate. Multiple air guides are arranged radially and connected to the heat dissipation plate. A limiting member is connected to the base. The honeycomb plate is connected to the heat dissipation plate and is located between the heat dissipation fins and the exhaust fan. The limiting member is connected to the base and is self-locking with the heat dissipation fins. When the heat dissipation assembly is in use, the intake fan and the exhaust fan work to form an airflow path. The airflow passes through the ventilation duct formed by the self-locking of the heat dissipation fins and the limiting member to reduce the heat of the base.

[0007] Preferably, the limiting component consists of a limiting seat and a protrusion. The number of limiting seats corresponds to the number of heat dissipation fins. The limiting seat consists of a base plate and two symmetrically arranged side plates. A protrusion is connected to one side of the side plates facing each other, and the protrusion contacts the protrusion on the heat dissipation fin.

[0008] Preferably, the exhaust fan and the intake fan are set at different angles, with the exhaust fan tilted upward at 15° and the intake fan tilted downward at 10°.

[0009] Preferably, a heat-conducting medium is applied between the heat spreader and the cover plate.

[0010] Preferably, multiple streamlined baffles are provided on both sides of the heat dissipation fins.

[0011] Preferably, a linear motor is connected to the machine body, and the slider of the linear motor is detachably connected to the worktable.

[0012] Preferably, the locking component consists of fixing bolts and a limiting plate, with multiple fixing bolts threadedly connected to the positioning threaded holes, and the limiting plate rotatably connected to the fixing bolts.

[0013] Preferably, an adjusting plate is connected to the fixing bolt.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] In this invention, the heat dissipation assembly inside the workbench consists of a heat dissipation plate and heat dissipation fins in the heat dissipation component, which, together with the base and the limiting seat, form multiple rectangular closed airflow channels. When the cold air drawn in by the intake fan moves, it must pass through these airflow channels to reduce the temperature inside the workbench, thus preventing airflow leakage from other locations and reducing contact with the heat dissipation fins. At the same time, the bottom of the heat dissipation fins is restricted by the limiting component, which also prevents the heat dissipation fins from vibrating and generating noise when high-speed airflow passes through. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a sectional view of the worktable;

[0018] Figure 3 This is a schematic diagram of the heat sink structure;

[0019] Figure 4 for Figure 3 Enlarged view of the structure at point A;

[0020] Reference numerals in the attached drawings: 1. Main body of the welding machine; 2. Machine body; 3. Workbench; 4. Base; 5. Cover plate; 6. Locking component; 7. Inlet fan; 8. Exit fan; 9. Heat sink; 10. Limiting component; 11. Heat dissipation plate; 12. Heat dissipation fins; 13. Guide plate; 14. Honeycomb plate; 15. Limiting seat; 16. Protrusion; 17. Base plate; 18. Side plate; 19. Linear motor; 20. Fixing bolt; 21. Limiting plate; 22. Adjusting plate. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-4 As shown, the present invention proposes a welding machine for PCB board production, including a welding machine body 1 and a heat dissipation assembly. The welding machine body 1 includes a machine body 2 and a worktable 3. The worktable 3 is slidably connected to the machine body 2 and consists of a base 4 and a cover plate 5. The base 4 has an accommodating cavity on the side near the cover plate 5. The cover plate 5 is bolted to the base 4 and has multiple positioning threaded holes. Multiple locking parts 6 are detachably connected to the cover plate 5. A bracket is provided on the lower end face of the worktable 3. The bracket has a gap with the linear motor 19 to increase the contact area between the worktable 3 and the air and enhance the heat dissipation capacity.

[0023] The heat dissipation assembly is connected to the base 4 and includes an intake fan 7, an exhaust fan 8, a heat sink 9, and a limiting member 10. The intake fan 7 and the exhaust fan 8 are respectively installed on both sides of the base 4. The heat sink 9 is located between the intake fan 7 and the exhaust fan 8. The heat sink 9 consists of a heat spreader 11, heat dissipation fins 12, air guide plates 13, and a honeycomb plate 14. Multiple parallel heat dissipation fins 12 are connected to one side of the heat spreader 11. The side of the heat dissipation fins 12 away from the heat spreader 11 has symmetrical protrusions. Multiple air guide plates 13... Arranged radially, the guide plate 13 is connected to the heat spreader 11, the limiting member 10 is connected to the base 4, the honeycomb plate 14 is connected to the heat spreader 11, the honeycomb plate 14 is disposed between the heat dissipation fins 12 and the exhaust fan 8, the limiting member 10 is connected to the base 4, and the limiting member 10 and the heat dissipation fins 12 are self-locking; when the heat dissipation assembly is in use, the intake fan 7 and the exhaust fan 8 work to form an airflow passage, and the airflow passes through the ventilation duct formed by the self-locking of the heat dissipation fins 12 and the limiting member 10 to reduce the heat of the base 4.

[0024] Example 2

[0025] like Figures 2-4 As shown, the present invention proposes a welding machine for PCB board production. Compared with the first embodiment, this embodiment describes the detailed structure of the heat dissipation component. The limiting member 10 is composed of a limiting seat 15 and a protrusion 16. The number of limiting seats 15 corresponds to the number of heat dissipation fins 12. The limiting seat 15 is composed of a base plate 17 and two symmetrically arranged side plates 18. The side plates 18 are connected to the protrusion 16 on one side facing each other. The protrusion 16 contacts the protrusion on the heat dissipation fin 12.

[0026] In an optional embodiment, the exhaust fan 8 and the intake fan 7 are provided with different angles. The exhaust fan 8 is tilted upward at 15° and the intake fan 7 is tilted downward at 10°. The different angles of the exhaust fan 8 and the intake fan 7 will cause the air to flow in different directions. The hot air is lighter and the downward tilt can make it be discharged quickly. The tilt angle guides the hot air to rise naturally and works in synergy with the fan airflow. The downward tilt of the intake fan 7 avoids the intake of hot air from the bottom of the device.

[0027] In an optional embodiment, a thermally conductive medium is applied between the heat spreader 11 and the cover plate 5; the thermally conductive medium is selected from, but is not limited to, silicone grease, and the thermally conductive medium can reduce the gap between the objects to reduce thermal resistance.

[0028] In an optional embodiment, multiple streamlined baffles are provided on both sides of the heat dissipation fins 12; the streamlined baffles can increase the generation of turbulence to enhance heat dissipation efficiency.

[0029] In an optional embodiment, a linear motor 19 is connected to the body 2, and the slider of the linear motor 19 is detachably connected to the worktable 3.

[0030] In an optional embodiment, the locking member 6 consists of fixing bolts 20 and a limiting plate 21, with multiple fixing bolts 20 threadedly connected to the positioning threaded holes, and the limiting plate 21 rotatably connected to the fixing bolts 20.

[0031] In an optional embodiment, an adjusting plate 22 is connected to the fixing bolt 20; the adjusting plate 22 is provided to facilitate quick loosening of the fixing bolt 20.

[0032] In summary, when using this utility model, the operator places the PCB board to be soldered on top of the cover plate 5, and then installs the fixing bolt 20 in the threaded hole. The fixing bolt 20 is rotated by the rotating adjustment plate 22 to fix it, so that the limiting plate 21 is close to the PCB board to restrict its movement. Then the welding machine body 1 is started and the intake fan 7 and exhaust fan 8 are powered on. The heat generated by the welding of the welding machine body 1 will be transferred and guided to the heat dissipation fins 12 through the cover plate 5, the heat dissipation medium and the heat spreader 11. In the airflow channel formed by the operation of the intake fan 7 and the exhaust fan 8, the airflow continues to flow and exhausts the hot air in the workbench 3 to the outside. The guide plate 13 guides the airflow generated by the intake fan 7 to distribute it evenly in each airflow channel through its own shape. The airflow is discharged after passing through the honeycomb plate 14 to reduce the noise it may generate. When the linear motor 19 runs, its slider drives the workbench 3 and the PCB board to move. The welding part of the welding machine body 1 is close to the PCB board for soldering.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A welding machine for PCB board production, characterized in that, include The main body (1) of the welding machine includes a machine body (2) and a worktable (3). The worktable (3) is slidably connected to the machine body (2). The worktable (3) is composed of a base (4) and a cover plate (5). The base (4) has a cavity on the side near the cover plate (5). The cover plate (5) is bolted to the base (4). The cover plate (5) has multiple positioning threaded holes. Multiple locking parts (6) are detachably connected to the cover plate (5). The heat dissipation assembly, connected to the base (4), includes an intake fan (7), an exhaust fan (8), a heat sink (9), and a limiting member (10). The intake fan (7) and the exhaust fan (8) are respectively installed on both sides of the base (4). The heat sink (9) is located between the intake fan (7) and the exhaust fan (8). The heat sink (9) is composed of a heat spreader (11), heat dissipation fins (12), a guide plate (13), and a honeycomb plate (14). Multiple parallel heat dissipation fins (12) are connected to one side of the heat spreader (11). Symmetrical protrusions are provided on the side of the heat dissipation fins (12) away from the heat spreader (11). Multiple guide plates (13) is arranged radially, with the guide plate (13) connected to the heat spreader (11), the limiting member (10) connected to the base (4), the honeycomb plate (14) connected to the heat spreader (11), the honeycomb plate (14) being arranged between the heat dissipation fins (12) and the exhaust fan (8), the limiting member (10) being connected to the base (4), and the limiting member (10) being self-locked with the heat dissipation fins (12); when the heat dissipation assembly is in use, the intake fan (7) and the exhaust fan (8) work to form an airflow passage, and the airflow passes through the ventilation duct formed by the self-locking of the heat dissipation fins (12) and the limiting member (10) to reduce the heat of the base (4).

2. The welding machine for PCB board production according to claim 1, characterized in that, The limiting component (10) consists of a limiting seat (15) and a protrusion (16). The number of limiting seats (15) corresponds to the number of heat dissipation fins (12). The limiting seat (15) consists of a base plate (17) and two symmetrically arranged side plates (18). The side plates (18) are connected to the protrusion (16) on the opposite side. The protrusion (16) contacts the protrusion on the heat dissipation fins (12).

3. The welding machine for PCB board production according to claim 1, characterized in that, The exhaust fan (8) and the intake fan (7) are both set with different angles. The exhaust fan (8) is tilted upward at 15° and the intake fan (7) is tilted downward at 10°.

4. The welding machine for PCB board production according to claim 1, characterized in that, A heat-conducting medium is applied between the heat spreader (11) and the cover plate (5).

5. The welding machine for PCB board production according to claim 1, characterized in that, Multiple streamlined baffles are provided on both sides of the heat dissipation fins (12).

6. The welding machine for PCB board production according to claim 1, characterized in that, A linear motor (19) is connected to the machine body (2), and the slider of the linear motor (19) is detachably connected to the worktable (3).

7. The welding machine for PCB board production according to claim 1, characterized in that, The locking component (6) consists of a fixing bolt (20) and a limiting plate (21). Multiple fixing bolts (20) are threadedly connected to the positioning threaded hole, and the limiting plate (21) is rotatably connected to the fixing bolts (20).

8. The welding machine for PCB board production according to claim 7, characterized in that, An adjusting plate (22) is connected to the fixing bolt (20).

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